Purple Sweet Potato Gnocchi recipe

Caroline

Sharing simple, flavorful recipes made with love and care.

Let me confess something: I used to be intimidated by gnocchi. Homemade pasta? It sounded like a project reserved for seasoned chefs, not a regular weeknight dinner for my family. But then, I stumbled upon purple sweet potato gnocchi, and everything changed. The vibrant color alone was enough to pique my interest – a deep, rich purple that promised something special. And the taste? Oh my goodness, the taste! The first time I made these jewel-toned dumplings, I was absolutely blown away. The texture was unbelievably light and pillowy, melting in your mouth with a subtle sweetness from the purple sweet potato. Paired with a simple sage butter sauce, it was a dish that felt both rustic and elegant, comforting and exciting all at once.

What started as a culinary experiment quickly became a family favorite. Even my kids, who are notoriously picky eaters, devoured these purple wonders. They loved the fun color, the playful texture, and the surprisingly delicious flavor. And me? I loved how relatively easy they were to make, transforming humble sweet potatoes into a restaurant-worthy meal in under an hour. This isn’t just gnocchi; it’s an experience, a delightful culinary adventure that brings a touch of magic to your kitchen and a burst of flavor to your plate. If you’re looking to step outside your usual dinner routine, impress your guests with a stunning and unique dish, or simply treat yourself to something truly special, then you absolutely must try this Purple Sweet Potato Gnocchi recipe. Get ready to roll up your sleeves, embrace the purple, and discover the joy of homemade gnocchi – it’s easier and more rewarding than you might think!

Ingredients: Unveiling the Vibrant Components of Purple Sweet Potato Gnocchi

Creating exceptional purple sweet potato gnocchi relies on a handful of key ingredients, each contributing to the gnocchi’s signature texture, flavor, and stunning color. Using high-quality ingredients, especially for such a simple recipe, truly makes a difference. Here’s a detailed breakdown of what you’ll need, along with explanations and suggestions for variations:

  • 1 pound (454g) Purple Sweet Potatoes: These vibrant tubers are the heart and soul of this gnocchi, lending their beautiful purple hue, subtle sweetness, and creamy texture. Using purple sweet potatoes is what sets this gnocchi apart, both visually and flavor-wise.
    • Purple Sweet Potato Variety: Look for Stokes Purple Sweet Potatoes or Okinawan Purple Sweet Potatoes, which are readily available in many grocery stores and farmers markets, especially during fall and winter months. These varieties have a deep purple flesh that retains its color beautifully when cooked. Avoid confusing them with purple yams, which are starchier and less sweet.
    • Sweet Potato Preparation: Roasting the sweet potatoes is crucial for this recipe. Roasting brings out their natural sweetness and dries them out slightly, which is essential for creating gnocchi dough that isn’t too wet and sticky. Avoid boiling or steaming, as these methods add excess moisture, making the dough harder to work with.
    • Sweet Potato Substitutions (If Purple Unavailable): If you can’t find purple sweet potatoes, you can use regular orange sweet potatoes or even Yukon Gold potatoes as a substitute. However, the color will be different, and the flavor will be less distinctively sweet potato. Orange sweet potatoes will still yield a delicious gnocchi, just without the signature purple hue. Yukon Gold potatoes will result in a more traditional, less sweet gnocchi.
  • 1 cup (120g) Semolina Flour, plus more for dusting: Semolina flour, made from durum wheat, is the secret ingredient for achieving gnocchi with a light, yet slightly chewy texture. It provides structure to the dough without making it tough.
    • Semolina Type: Use fine semolina flour (semola di grano duro rimacinata) if possible, as it blends more seamlessly into the dough. Coarse semolina can also be used, but it may result in a slightly grainier texture.
    • Semolina Importance: Semolina flour is crucial for authentic gnocchi texture. It has a higher protein content than all-purpose flour, which helps to create a dough that is elastic yet tender. It also absorbs moisture well, preventing the gnocchi from becoming sticky or gummy.
    • Semolina Substitutions (Less Ideal): While semolina flour is highly recommended, you can use all-purpose flour in a pinch. However, all-purpose flour will result in a softer, less chewy gnocchi that may be more prone to becoming sticky. If using all-purpose flour, start with less and add more gradually, as it absorbs moisture differently than semolina. Gluten-free flour blends are generally not recommended for gnocchi as they can be difficult to work with and may not yield the desired texture.
  • 1/2 cup (60g) Potato Starch (or All-Purpose Flour): Potato starch further contributes to the light and airy texture of the gnocchi, making them melt-in-your-mouth tender. It also helps to bind the dough and absorb any excess moisture.
    • Potato Starch vs. Potato Flour: Potato starch and potato flour are not the same. Potato starch is a pure starch extracted from potatoes, while potato flour is made from dehydrated, ground potatoes. Potato starch is preferred for gnocchi as it is finer and contributes to a lighter texture.
    • Potato Starch Importance: Potato starch helps to create a delicate, almost ethereal texture in the gnocchi. It absorbs moisture efficiently and prevents the dough from becoming dense or heavy.
    • Potato Starch Substitutions: If you don’t have potato starch, you can substitute all-purpose flour. However, potato starch will yield a lighter, more tender gnocchi. If using all-purpose flour, use it sparingly and add more semolina if the dough becomes too sticky. Cornstarch is not recommended as a direct substitute, as it has a different thickening property.
  • 1/4 teaspoon Ground Nutmeg: A subtle hint of ground nutmeg adds a warm, aromatic spice note that beautifully complements the sweetness of the purple sweet potatoes and the savory sage butter sauce.
    • Freshly Grated Nutmeg (Recommended): Freshly grated nutmeg is always preferred for its more intense and nuanced flavor compared to pre-ground nutmeg. Use a microplane or fine grater to grate fresh nutmeg directly into the dough.
    • Nutmeg Importance: Nutmeg adds a subtle warmth and depth of flavor that elevates the gnocchi and creates a more complex taste profile. It’s a classic spice pairing for potato and pasta dishes.
    • Nutmeg Substitutions (Other Spices): You can experiment with other warm spices like cinnamon, cloves, or allspice for a slightly different flavor dimension, but nutmeg is the traditional and recommended choice for gnocchi. For a savory herb note, you can use a pinch of dried sage or thyme instead of nutmeg, or in addition to it.
  • 1/2 teaspoon Salt, plus more for cooking water: Salt is essential for seasoning the gnocchi dough and enhancing the flavors of all the ingredients. Salt is also crucial for seasoning the cooking water, as this seasons the gnocchi from the inside out.
    • Salt Type: Kosher salt is recommended for its clean taste and ease of use, but sea salt or table salt can also be used.
    • Salt Importance: Salt is crucial for bringing out the flavors of the sweet potatoes, semolina, and nutmeg in the gnocchi dough. It also seasons the cooking water, which is essential for flavorful gnocchi.
    • Salt Adjustment: The amount of salt may need to be adjusted to your preference. Start with 1/2 teaspoon in the dough and add more to taste, especially after cooking the gnocchi.
  • For the Sage Butter Sauce:
    • 4 tablespoons Unsalted Butter: Butter forms the base of the classic sage butter sauce, providing richness, nutty flavor, and a beautiful aroma. Unsalted butter is recommended to control the salt level.
    • 8-10 Fresh Sage Leaves: Fresh sage leaves are the star of the sauce, lending their distinctive earthy, slightly peppery, and aromatic flavor that pairs perfectly with sweet potatoes and gnocchi. Fresh sage is highly recommended for its vibrant flavor and aroma.
      • Fresh Sage vs. Dried Sage: Fresh sage is significantly more flavorful and aromatic than dried sage. While dried sage can be used in a pinch, it will not provide the same fresh, nuanced flavor. If using dried sage, use about 1 teaspoon and consider adding a touch of fresh thyme or rosemary to compensate for the lack of fresh flavor.
      • Sage Variations (Other Herbs): You can experiment with other herbs like fresh thyme, rosemary, or oregano for a slightly different herb butter sauce. However, sage butter sauce is the classic and most traditional pairing for gnocchi.
    • Optional: 1/4 cup Grated Parmesan Cheese, for serving: Grated Parmesan cheese adds a salty, nutty, and savory element that complements the sweet potato gnocchi and sage butter sauce beautifully. Parmesan cheese is optional but highly recommended for serving, especially for those who enjoy a cheesy element.

Instructions: Mastering the Art of Homemade Purple Sweet Potato Gnocchi – Step-by-Step

Creating homemade purple sweet potato gnocchi might seem daunting, but with these detailed step-by-step instructions, you’ll be rolling out pillowy dumplings like a pro in no time. The key is to follow each step carefully, especially when it comes to handling the dough.

1. Roast the Sweet Potatoes:

  • Preheat your oven to 400°F (200°C).
  • Wash the purple sweet potatoes thoroughly and prick them several times with a fork. This allows steam to escape during roasting and prevents them from bursting.
  • Place the sweet potatoes directly on the oven rack or on a baking sheet lined with parchment paper.
  • Roast for 45-60 minutes, or until the sweet potatoes are very soft and easily pierced with a fork. Roasting time will depend on the size of the sweet potatoes.
  • Once roasted, remove the sweet potatoes from the oven and let them cool slightly until they are cool enough to handle but still warm.

2. Prepare the Sweet Potato Puree:

  • Cut the roasted sweet potatoes in half lengthwise and scoop out the flesh, discarding the skins.
  • Pass the warm sweet potato flesh through a ricer or food mill into a large bowl. Ricing or milling the sweet potatoes is crucial for creating a smooth, lump-free puree, which is essential for tender gnocchi. If you don’t have a ricer or food mill, you can mash the sweet potatoes very thoroughly with a fork, ensuring there are no lumps remaining.
  • Spread the sweet potato puree out in the bowl and let it cool slightly. Cooling the puree slightly helps to reduce excess moisture and makes the dough easier to handle.

3. Make the Gnocchi Dough:

  • To the cooled sweet potato puree in the bowl, add 1 cup of semolina flour, 1/2 cup of potato starch (or all-purpose flour), 1/4 teaspoon of ground nutmeg, and 1/2 teaspoon of salt.
  • Using your hands or a spatula, gently mix the ingredients together until a dough forms. Be careful not to overwork the dough, as this can develop gluten and make the gnocchi tough. The dough should be soft and slightly sticky, but not overly wet or clinging to your hands.
  • If the dough is too wet and sticky, add a little more semolina flour, one tablespoon at a time, until it is easier to handle. If the dough is too dry and crumbly, add a teaspoon of water at a time until it comes together. The amount of flour needed may vary slightly depending on the moisture content of the sweet potatoes.

4. Shape the Gnocchi:

  • Lightly flour a clean work surface with semolina flour.
  • Divide the gnocchi dough into 4 equal portions.
  • Roll out one portion of the dough into a long rope about 1/2 inch thick.
  • Use a bench scraper or knife to cut the rope into 3/4-inch pieces. These are your gnocchi.
  • Repeat with the remaining dough portions.
  • Optional Gnocchi Ridges: For a more traditional gnocchi appearance and to help sauce cling to the gnocchi, you can create ridges using a gnocchi board or the back of a fork. To do this, gently roll each gnocchi piece down a gnocchi board or the back of a fork, pressing lightly with your thumb to create ridges. This step is optional but adds a professional touch.

5. Cook the Gnocchi:

  • Bring a large pot of salted water to a rolling boil. Salt the water generously – it should taste like seawater. Salting the water seasons the gnocchi from the inside out.
  • Gently drop the gnocchi into the boiling water in batches, being careful not to overcrowd the pot. Overcrowding can lower the water temperature and make the gnocchi stick together.
  • Cook the gnocchi for 2-3 minutes, or until they float to the surface and are tender. Gnocchi cook very quickly. Once they float, they are generally cooked through. Cook for another minute or two to ensure they are heated through and slightly tender.
  • Using a slotted spoon or spider strainer, carefully remove the cooked gnocchi from the boiling water and transfer them to a bowl or plate.

6. Make the Sage Butter Sauce:

  • While the gnocchi is cooking, make the sage butter sauce.
  • In a large skillet over medium heat, melt 4 tablespoons of unsalted butter.
  • Once the butter is melted and sizzling, add 8-10 fresh sage leaves to the skillet.
  • Cook the sage leaves in the butter for 1-2 minutes, or until the butter is fragrant and slightly browned and the sage leaves are crispy. Be careful not to burn the butter or sage. The butter will become fragrant and take on a nutty aroma as it browns slightly.
  • Remove the skillet from the heat.

7. Combine Gnocchi and Sauce & Serve:

  • Add the cooked gnocchi to the skillet with the sage butter sauce.
  • Gently toss the gnocchi in the sage butter sauce to coat them evenly.
  • Serve immediately, garnished with grated Parmesan cheese (if desired) and extra fresh sage leaves.
  • Enjoy your homemade Purple Sweet Potato Gnocchi with Sage Butter Sauce!

Nutrition Facts: A Glimpse into the Nutritional Profile of Purple Sweet Potato Gnocchi

Understanding the nutritional content of your meals is helpful for making informed dietary choices. Here’s an estimated nutritional breakdown per serving of Purple Sweet Potato Gnocchi with Sage Butter Sauce (assuming a recipe divided into 4 servings and not including Parmesan cheese – nutritional values will vary based on specific ingredients, portion sizes, and variations):

Servings: Approximately 4 servings
Calories per serving (estimated): 350-450 calories

Approximate Nutritional Breakdown (per serving):

  • Protein: 8-10g (primarily from semolina flour and sweet potato)
  • Fat: 15-20g (primarily from butter)
    • Saturated Fat: 10-12g (from butter)
    • Unsaturated Fat: (from butter)
  • Cholesterol: 40-50mg (from butter)
  • Sodium: 300-400mg (can vary depending on added salt)
  • Carbohydrates: 50-60g (primarily from sweet potato and semolina flour)
    • Fiber: 5-7g (Good source of fiber from sweet potato)
    • Sugar: 10-15g (Natural sugars from sweet potato)

Micronutrient Highlights (Approximate, and will vary):

  • Vitamins:
    • Vitamin A (Excellent source, from purple sweet potato)
    • Vitamin C (Good source, from purple sweet potato)
    • Vitamin B6 (from sweet potato)
  • Minerals:
    • Potassium (Good source, from purple sweet potato)
    • Manganese (from sweet potato)
    • Copper (from sweet potato)

Health Benefits of Purple Sweet Potato Gnocchi:

  • Good Source of Vitamin A: Purple sweet potatoes are exceptionally rich in Vitamin A, an essential nutrient for vision, immune function, and cell growth.
  • Good Source of Fiber: Sweet potatoes and semolina flour contribute to a good amount of dietary fiber, which is important for digestive health, blood sugar control, and promoting satiety.
  • Provides Plant-Based Protein: While not a high-protein dish, gnocchi does provide a moderate amount of plant-based protein from semolina flour and sweet potatoes.
  • Lower in Fat than Some Pasta Dishes: Compared to some cream-sauced pasta dishes, purple sweet potato gnocchi with sage butter sauce can be a relatively lighter option, especially if you use less butter or substitute with olive oil.
  • Naturally Vegetarian: This recipe is naturally vegetarian and can easily be made vegan by substituting vegan butter and omitting Parmesan cheese.

Preparation Time: A Rewarding Culinary Project Achievable in Under 2 Hours

Making homemade gnocchi is a rewarding culinary project that, while requiring a bit of time, is definitely achievable in under 2 hours, especially with practice.

  • Prep Time: 30-40 minutes (This includes roasting sweet potatoes, making puree, making dough, rolling and cutting gnocchi.) Roasting the sweet potatoes is the most time-consuming part, but it’s mostly hands-off oven time.
  • Cook Time: 10-15 minutes (This includes cooking gnocchi in batches and making the sage butter sauce.) Gnocchi cook very quickly, and the sauce is also fast to prepare.
  • Total Time: 40-55 minutes Active Time, 1 hour 15 minutes – 1 hour 30 minutes Total Time (including roasting time)

Highlighting the Rewarding Nature and Manageable Timeframe:

  • Weekend Culinary Project: Perfect for a weekend cooking project when you have a bit more time to enjoy the process of making homemade pasta.
  • Impressive Weeknight Meal (with Planning): With some planning, you can roast the sweet potatoes ahead of time (even the day before) and then make the gnocchi dough and cook the gnocchi and sauce on a weeknight for a special homemade meal.
  • Fun and Engaging Cooking Activity: Making gnocchi can be a fun and engaging cooking activity, especially if you involve family members or friends in the process of rolling and shaping the gnocchi.
  • Worth the Effort: While it takes a bit more time than simply boiling pasta, the reward of enjoying fresh, homemade purple sweet potato gnocchi is well worth the effort.

How to Serve Purple Sweet Potato Gnocchi: Elevating Your Gnocchi Experience with Sauces, Toppings, and Pairings

Purple Sweet Potato Gnocchi is a versatile dish that can be served in various ways, from simple and rustic to elegant and refined. Here are some serving suggestions, sauce variations, topping ideas, and side dish pairings to enhance your gnocchi experience:

Sauce Variations (Beyond Sage Butter):

  • Brown Butter Sage Sauce: Enhance the sage butter sauce by browning the butter before adding the sage. Brown butter adds a nutty, caramelized flavor that is incredibly delicious with gnocchi.
  • Creamy Gorgonzola Sauce: A rich and decadent creamy Gorgonzola cheese sauce pairs beautifully with the sweetness of the purple sweet potatoes.
  • Pesto Cream Sauce: A vibrant pesto cream sauce (pesto blended with heavy cream or crème fraîche) adds a fresh, herbaceous, and nutty flavor.
  • Brown Butter Parmesan Sauce: A simple brown butter sauce with grated Parmesan cheese, black pepper, and a touch of lemon zest is another classic and delicious pairing.
  • Tomato Sauce (Marinara or Rosé): For a non-butter based option, a simple marinara sauce or a creamy rosé sauce (tomato sauce with cream) can be a delicious and lighter alternative.
  • Brown Butter Walnut Sauce: For a nuttier flavor profile, a brown butter sauce with toasted walnuts and a drizzle of balsamic glaze is a sophisticated and flavorful option.

Topping Ideas (Enhance Texture and Flavor):

  • Grated Parmesan Cheese: Classic and essential for adding salty, nutty, and cheesy flavor.
  • Fresh Sage Leaves (Crispy Fried): Enhance the sage butter sauce by topping with crispy fried sage leaves for extra texture and visual appeal.
  • Toasted Pine Nuts or Walnuts: Adds a crunchy texture and nutty flavor.
  • Crumbled Goat Cheese or Gorgonzola Cheese: For a tangy and creamy cheese topping (especially with brown butter or creamy sauces).
  • Fresh Herbs (Chopped Parsley, Chives, Thyme): Adds a fresh, herbaceous garnish and a pop of color.
  • Balsamic Glaze (Drizzle): A very small drizzle of balsamic glaze can add a touch of sweetness and tang, especially with brown butter or sage sauces.

Side Dish Pairings (Create a Complete Meal):

  • Side Salad with Balsamic Vinaigrette: A light and refreshing green salad with a balsamic vinaigrette dressing provides a welcome contrast to the richness of the gnocchi.
  • Roasted Vegetables (Asparagus, Broccoli, Brussels Sprouts): Roasted vegetables add fiber and nutrients and complement the flavors of the gnocchi. Roasted asparagus, broccoli, or Brussels sprouts are excellent choices.
  • Sautéed Spinach or Kale: Sautéed spinach or kale with garlic and olive oil provides a simple and healthy green side dish.
  • Grilled Chicken or Fish (for non-vegetarian): For a heartier meal, serve Purple Sweet Potato Gnocchi alongside grilled chicken breast or pan-seared fish.
  • Italian Sausage (Crumbled): For a more substantial and flavorful meal, crumble cooked Italian sausage (sweet or spicy) and toss it with the gnocchi and sauce.

Serving Occasions:

  • Elegant Dinner Party: Purple Sweet Potato Gnocchi is a stunning and impressive dish perfect for a dinner party or special occasion.
  • Romantic Dinner for Two: Its beautiful color and delicious flavor make it ideal for a romantic date night at home.
  • Holiday Meal Side Dish: Gnocchi can be a unique and flavorful side dish for Thanksgiving or Christmas dinner, especially as a vegetarian option.
  • Comfort Food Meal: Craving something comforting and satisfying? Gnocchi with sage butter sauce is pure comfort food bliss.
  • Vegetarian or Vegan Main Course: Easily made vegan, gnocchi provides a hearty and flavorful vegetarian or vegan main course option.

Additional Tips for Perfect Purple Sweet Potato Gnocchi: Secrets to Gnocchi Success

Mastering homemade gnocchi takes practice, but following these five essential tips will significantly increase your chances of gnocchi success and ensure pillowy, tender dumplings every time:

  1. Roast, Don’t Boil (or Steam) Sweet Potatoes: Moisture Control is Key: Roasting sweet potatoes is crucial for gnocchi texture. Roasting dries out the sweet potatoes slightly, concentrating their flavor and reducing excess moisture. Boiling or steaming adds water, resulting in a wetter puree and dough that requires significantly more flour, leading to denser, tougher gnocchi. Roasting is the secret to light and airy gnocchi.
  2. Rice or Mill the Sweet Potatoes: Smooth Puree = Smooth Gnocchi: Passing the cooked sweet potato flesh through a ricer or food mill is essential for creating a smooth, lump-free puree. A smooth puree is the foundation for smooth, tender gnocchi. Mashing with a fork, even if thorough, can leave small lumps that affect the gnocchi texture. If you don’t have a ricer or food mill, mash very thoroughly with a fork, ensuring no lumps remain, or consider pulsing briefly in a food processor (being careful not to over-process and make it gluey).
  3. Don’t Overwork the Dough: Gentle Handling is Crucial: Overworking the gnocchi dough develops gluten, which results in tough, chewy gnocchi. Handle the dough gently and mix just until the ingredients are combined into a cohesive dough. Knead the dough minimally, if at all. The dough should be soft and slightly sticky, but not overly wet or clinging to your hands. Less is more when it comes to working with gnocchi dough.
  4. Test Cook a Gnocchi Before Rolling All: Dough Consistency Check: Before rolling out all the gnocchi, test cook one or two gnocchi in boiling water. This is a crucial step to check the dough consistency. If the gnocchi fall apart in the water, the dough is likely too wet and needs a little more semolina flour. If they are too dense or tough, the dough may be too dry or overworked. Adjust the dough consistency as needed based on the test gnocchi before proceeding with shaping all of them.
  5. Cook Gnocchi in Batches and Don’t Overcrowd the Pot: Even Cooking and Texture: Cook gnocchi in batches in boiling water and avoid overcrowding the pot. Overcrowding lowers the water temperature and can make the gnocchi stick together and cook unevenly. Cooking in batches ensures that each gnocchi has enough space to cook properly and float to the surface, indicating doneness. Use a large pot with plenty of boiling, salted water.

Frequently Asked Questions (FAQ) About Purple Sweet Potato Gnocchi: Your Gnocchi Queries Answered

Still have questions about mastering homemade Purple Sweet Potato Gnocchi? Here are answers to some frequently asked questions to help you troubleshoot, customize, and perfect your gnocchi-making journey:

Q1: Can I make Purple Sweet Potato Gnocchi gluten-free?

A: Making gluten-free gnocchi is challenging, but possible with some adjustments:

  • Gluten-Free Flour Blend: Use a gluten-free all-purpose flour blend specifically designed for baking, but be aware that gluten-free flour blends often absorb moisture differently and can be trickier to work with for pasta dough.
  • Potato Starch as Main Binder: Increase the amount of potato starch and reduce or eliminate semolina or all-purpose flour. Potato starch is naturally gluten-free and contributes to a light texture. Experiment with ratios to find a workable dough consistency.
  • Rice Flour: Rice flour can be used in combination with potato starch for gluten-free gnocchi. It provides a slightly different texture than semolina but can be used to create gluten-free pasta.
  • Xanthan Gum (Optional): A small amount of xanthan gum (1/4 teaspoon or less) can help to bind gluten-free doughs and improve their texture and elasticity.
  • Trial and Error: Gluten-free gnocchi recipes often require some trial and error to get the dough consistency and cooking time right. Be prepared to experiment and adjust flour ratios as needed.

Q2: Can I make Purple Sweet Potato Gnocchi vegan?

A: Yes, this Purple Sweet Potato Gnocchi recipe is naturally vegan as written! Gnocchi dough typically doesn’t contain eggs, and this recipe relies on sweet potatoes, semolina, and potato starch. To keep the entire dish vegan, ensure you use vegan butter for the sage butter sauce and omit Parmesan cheese garnish, or use a vegan Parmesan cheese alternative.

Q3: Can I make Purple Sweet Potato Gnocchi ahead of time?

A: Yes, you can prepare Purple Sweet Potato Gnocchi ahead of time in several ways:

  • Make Dough Ahead: You can make the gnocchi dough ahead of time and store it tightly wrapped in plastic wrap in the refrigerator for up to 24 hours. Bring the dough to room temperature for about 30 minutes before rolling and shaping the gnocchi.
  • Shape Gnocchi Ahead: You can shape the gnocchi ahead of time and store them, uncooked, in a single layer on a floured baking sheet, lightly covered with plastic wrap, in the refrigerator for a few hours. Cook them just before serving.
  • Cook Gnocchi Ahead and Reheat (Less Ideal for Texture): While freshly cooked gnocchi are best, you can cook the gnocchi ahead of time, toss them lightly with olive oil to prevent sticking, and store them in an airtight container in the refrigerator for up to a day. Reheat them gently by pan-frying in butter or olive oil or briefly boiling them in water again. However, reheating may slightly alter their texture, making them less pillowy.

Q4: How do I store leftover cooked gnocchi?

A: Store leftover cooked Purple Sweet Potato Gnocchi in an airtight container in the refrigerator for up to 2-3 days. To reheat:

  • Pan-Fry: Pan-frying leftover gnocchi is the best way to revive their texture and crisp them up slightly. Melt butter or olive oil in a skillet over medium heat and pan-fry the gnocchi until heated through and lightly browned and crispy on the edges.
  • Boil Briefly: You can also reheat leftover gnocchi briefly in boiling water for 1-2 minutes, until heated through. However, this method may make them softer and less crispy than pan-frying.
  • Microwave (Less Recommended): Microwaving is not recommended as it can make the gnocchi rubbery and unevenly heated.

Q5: My gnocchi are falling apart when cooking, what did I do wrong?

A: Gnocchi falling apart during cooking is usually due to the dough being too wet or containing too much moisture. Common causes and solutions include:

  • Too Much Moisture in Sweet Potatoes: Ensure you roast the sweet potatoes until they are very soft and dry out slightly in the oven. Avoid boiling or steaming, which adds moisture. Rice or mill the sweet potatoes to remove excess moisture. Let the puree cool slightly to further reduce moisture.
  • Dough Too Wet: If the dough is too sticky and wet, it likely needs more semolina flour. Add semolina flour one tablespoon at a time, gently kneading it in, until the dough is easier to handle and less sticky. Be careful not to add too much flour, as this can make the gnocchi tough.
  • Overcooking: Overcooking gnocchi can make them fall apart. Cook gnocchi just until they float to the surface and are tender, about 2-3 minutes. Don’t cook them for too long after they float.
  • Water Not Boiling Vigorously Enough: Ensure the water is at a rolling boil when you add the gnocchi. Adding gnocchi to water that is not hot enough can make them fall apart.

Purple Sweet Potato Gnocchi with Sage Butter Sauce is a truly special dish that combines vibrant color, delicate texture, and comforting flavors. While homemade gnocchi requires a bit of effort, the reward of enjoying these pillowy purple dumplings, made with your own hands, is immeasurable. Embrace the process, follow these tips, and prepare to be amazed at the culinary magic you can create in your own kitchen!

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Purple Sweet Potato Gnocchi recipe


  • Author: Caroline

Ingredients

Scale

  • 1 pound (454g) Purple Sweet Potatoes: These vibrant tubers are the heart and soul of this gnocchi, lending their beautiful purple hue, subtle sweetness, and creamy texture. Using purple sweet potatoes is what sets this gnocchi apart, both visually and flavor-wise.

    • Purple Sweet Potato Variety: Look for Stokes Purple Sweet Potatoes or Okinawan Purple Sweet Potatoes, which are readily available in many grocery stores and farmers markets, especially during fall and winter months. These varieties have a deep purple flesh that retains its color beautifully when cooked. Avoid confusing them with purple yams, which are starchier and less sweet.
    • Sweet Potato Preparation: Roasting the sweet potatoes is crucial for this recipe. Roasting brings out their natural sweetness and dries them out slightly, which is essential for creating gnocchi dough that isn’t too wet and sticky. Avoid boiling or steaming, as these methods add excess moisture, making the dough harder to work with.
    • Sweet Potato Substitutions (If Purple Unavailable): If you can’t find purple sweet potatoes, you can use regular orange sweet potatoes or even Yukon Gold potatoes as a substitute. However, the color will be different, and the flavor will be less distinctively sweet potato. Orange sweet potatoes will still yield a delicious gnocchi, just without the signature purple hue. Yukon Gold potatoes will result in a more traditional, less sweet gnocchi.

  • 1 cup (120g) Semolina Flour, plus more for dusting: Semolina flour, made from durum wheat, is the secret ingredient for achieving gnocchi with a light, yet slightly chewy texture. It provides structure to the dough without making it tough.

    • Semolina Type: Use fine semolina flour (semola di grano duro rimacinata) if possible, as it blends more seamlessly into the dough. Coarse semolina can also be used, but it may result in a slightly grainier texture.
    • Semolina Importance: Semolina flour is crucial for authentic gnocchi texture. It has a higher protein content than all-purpose flour, which helps to create a dough that is elastic yet tender. It also absorbs moisture well, preventing the gnocchi from becoming sticky or gummy.
    • Semolina Substitutions (Less Ideal): While semolina flour is highly recommended, you can use all-purpose flour in a pinch. However, all-purpose flour will result in a softer, less chewy gnocchi that may be more prone to becoming sticky. If using all-purpose flour, start with less and add more gradually, as it absorbs moisture differently than semolina. Gluten-free flour blends are generally not recommended for gnocchi as they can be difficult to work with and may not yield the desired texture.

  • 1/2 cup (60g) Potato Starch (or All-Purpose Flour): Potato starch further contributes to the light and airy texture of the gnocchi, making them melt-in-your-mouth tender. It also helps to bind the dough and absorb any excess moisture.

    • Potato Starch vs. Potato Flour: Potato starch and potato flour are not the same. Potato starch is a pure starch extracted from potatoes, while potato flour is made from dehydrated, ground potatoes. Potato starch is preferred for gnocchi as it is finer and contributes to a lighter texture.
    • Potato Starch Importance: Potato starch helps to create a delicate, almost ethereal texture in the gnocchi. It absorbs moisture efficiently and prevents the dough from becoming dense or heavy.
    • Potato Starch Substitutions: If you don’t have potato starch, you can substitute all-purpose flour. However, potato starch will yield a lighter, more tender gnocchi. If using all-purpose flour, use it sparingly and add more semolina if the dough becomes too sticky. Cornstarch is not recommended as a direct substitute, as it has a different thickening property.

  • 1/4 teaspoon Ground Nutmeg: A subtle hint of ground nutmeg adds a warm, aromatic spice note that beautifully complements the sweetness of the purple sweet potatoes and the savory sage butter sauce.

    • Freshly Grated Nutmeg (Recommended): Freshly grated nutmeg is always preferred for its more intense and nuanced flavor compared to pre-ground nutmeg. Use a microplane or fine grater to grate fresh nutmeg directly into the dough.
    • Nutmeg Importance: Nutmeg adds a subtle warmth and depth of flavor that elevates the gnocchi and creates a more complex taste profile. It’s a classic spice pairing for potato and pasta dishes.
    • Nutmeg Substitutions (Other Spices): You can experiment with other warm spices like cinnamon, cloves, or allspice for a slightly different flavor dimension, but nutmeg is the traditional and recommended choice for gnocchi. For a savory herb note, you can use a pinch of dried sage or thyme instead of nutmeg, or in addition to it.

  • 1/2 teaspoon Salt, plus more for cooking water: Salt is essential for seasoning the gnocchi dough and enhancing the flavors of all the ingredients. Salt is also crucial for seasoning the cooking water, as this seasons the gnocchi from the inside out.

    • Salt Type: Kosher salt is recommended for its clean taste and ease of use, but sea salt or table salt can also be used.
    • Salt Importance: Salt is crucial for bringing out the flavors of the sweet potatoes, semolina, and nutmeg in the gnocchi dough. It also seasons the cooking water, which is essential for flavorful gnocchi.
    • Salt Adjustment: The amount of salt may need to be adjusted to your preference. Start with 1/2 teaspoon in the dough and add more to taste, especially after cooking the gnocchi.

  • For the Sage Butter Sauce:

    • 4 tablespoons Unsalted Butter: Butter forms the base of the classic sage butter sauce, providing richness, nutty flavor, and a beautiful aroma. Unsalted butter is recommended to control the salt level.
    • 8-10 Fresh Sage Leaves: Fresh sage leaves are the star of the sauce, lending their distinctive earthy, slightly peppery, and aromatic flavor that pairs perfectly with sweet potatoes and gnocchi. Fresh sage is highly recommended for its vibrant flavor and aroma.

      • Fresh Sage vs. Dried Sage: Fresh sage is significantly more flavorful and aromatic than dried sage. While dried sage can be used in a pinch, it will not provide the same fresh, nuanced flavor. If using dried sage, use about 1 teaspoon and consider adding a touch of fresh thyme or rosemary to compensate for the lack of fresh flavor.
      • Sage Variations (Other Herbs): You can experiment with other herbs like fresh thyme, rosemary, or oregano for a slightly different herb butter sauce. However, sage butter sauce is the classic and most traditional pairing for gnocchi.

    • Optional: 1/4 cup Grated Parmesan Cheese, for serving: Grated Parmesan cheese adds a salty, nutty, and savory element that complements the sweet potato gnocchi and sage butter sauce beautifully. Parmesan cheese is optional but highly recommended for serving, especially for those who enjoy a cheesy element.


Instructions

1. Roast the Sweet Potatoes:

  • Preheat your oven to 400°F (200°C).
  • Wash the purple sweet potatoes thoroughly and prick them several times with a fork. This allows steam to escape during roasting and prevents them from bursting.
  • Place the sweet potatoes directly on the oven rack or on a baking sheet lined with parchment paper.
  • Roast for 45-60 minutes, or until the sweet potatoes are very soft and easily pierced with a fork. Roasting time will depend on the size of the sweet potatoes.
  • Once roasted, remove the sweet potatoes from the oven and let them cool slightly until they are cool enough to handle but still warm.

2. Prepare the Sweet Potato Puree:

  • Cut the roasted sweet potatoes in half lengthwise and scoop out the flesh, discarding the skins.
  • Pass the warm sweet potato flesh through a ricer or food mill into a large bowl. Ricing or milling the sweet potatoes is crucial for creating a smooth, lump-free puree, which is essential for tender gnocchi. If you don’t have a ricer or food mill, you can mash the sweet potatoes very thoroughly with a fork, ensuring there are no lumps remaining.
  • Spread the sweet potato puree out in the bowl and let it cool slightly. Cooling the puree slightly helps to reduce excess moisture and makes the dough easier to handle.

3. Make the Gnocchi Dough:

  • To the cooled sweet potato puree in the bowl, add 1 cup of semolina flour, 1/2 cup of potato starch (or all-purpose flour), 1/4 teaspoon of ground nutmeg, and 1/2 teaspoon of salt.
  • Using your hands or a spatula, gently mix the ingredients together until a dough forms. Be careful not to overwork the dough, as this can develop gluten and make the gnocchi tough. The dough should be soft and slightly sticky, but not overly wet or clinging to your hands.
  • If the dough is too wet and sticky, add a little more semolina flour, one tablespoon at a time, until it is easier to handle. If the dough is too dry and crumbly, add a teaspoon of water at a time until it comes together. The amount of flour needed may vary slightly depending on the moisture content of the sweet potatoes.

4. Shape the Gnocchi:

  • Lightly flour a clean work surface with semolina flour.
  • Divide the gnocchi dough into 4 equal portions.
  • Roll out one portion of the dough into a long rope about 1/2 inch thick.
  • Use a bench scraper or knife to cut the rope into 3/4-inch pieces. These are your gnocchi.
  • Repeat with the remaining dough portions.
  • Optional Gnocchi Ridges: For a more traditional gnocchi appearance and to help sauce cling to the gnocchi, you can create ridges using a gnocchi board or the back of a fork. To do this, gently roll each gnocchi piece down a gnocchi board or the back of a fork, pressing lightly with your thumb to create ridges. This step is optional but adds a professional touch.

5. Cook the Gnocchi:

  • Bring a large pot of salted water to a rolling boil. Salt the water generously – it should taste like seawater. Salting the water seasons the gnocchi from the inside out.
  • Gently drop the gnocchi into the boiling water in batches, being careful not to overcrowd the pot. Overcrowding can lower the water temperature and make the gnocchi stick together.
  • Cook the gnocchi for 2-3 minutes, or until they float to the surface and are tender. Gnocchi cook very quickly. Once they float, they are generally cooked through. Cook for another minute or two to ensure they are heated through and slightly tender.
  • Using a slotted spoon or spider strainer, carefully remove the cooked gnocchi from the boiling water and transfer them to a bowl or plate.

6. Make the Sage Butter Sauce:

  • While the gnocchi is cooking, make the sage butter sauce.
  • In a large skillet over medium heat, melt 4 tablespoons of unsalted butter.
  • Once the butter is melted and sizzling, add 8-10 fresh sage leaves to the skillet.
  • Cook the sage leaves in the butter for 1-2 minutes, or until the butter is fragrant and slightly browned and the sage leaves are crispy. Be careful not to burn the butter or sage. The butter will become fragrant and take on a nutty aroma as it browns slightly.
  • Remove the skillet from the heat.

7. Combine Gnocchi and Sauce & Serve:

  • Add the cooked gnocchi to the skillet with the sage butter sauce.
  • Gently toss the gnocchi in the sage butter sauce to coat them evenly.
  • Serve immediately, garnished with grated Parmesan cheese (if desired) and extra fresh sage leaves.
  • Enjoy your homemade Purple Sweet Potato Gnocchi with Sage Butter Sauce!

Nutrition

  • Serving Size: one normal portion
  • Calories: 350-450 calories
  • Sugar:  10-15g
  • Sodium: 300-400mg
  • Fat: 15-20g
  • Saturated Fat: 10-12g
  • Carbohydrates: 50-60g
  • Fiber: 5-7g
  • Protein: 8-10g
  • Cholesterol:  40-50mg