Sweet Potato Gnocchi with Tomato and Prawn Sauce

The first time I tasted gnocchi, it was in a tiny trattoria tucked away on a cobblestone street in Rome. The sunlight streaming through the window, the murmur of Italian conversations, and the pillowy soft potato dumplings coated in a vibrant tomato sauce – it was pure magic. Ever since, I’ve been on a quest to recreate that perfect bite, and this sweet potato gnocchi with tomato and prawn sauce comes incredibly close. It brings together the comforting sweetness of roasted sweet potatoes with the freshness of a homemade tomato sauce and the delicate flavour of prawns, creating a dish that’s both rustic and refined.

Recipe Overview

• Prep Time: 45 minutes
• Cook Time: 45 minutes
• Total Time: 1 hour 30 minutes
• Servings: 4
• Yield: About 40 gnocchi
• Dietary Type: Dairy-Free (can be Gluten-Free)

Ingredients

For the Gnocchi:

• 2 medium sweet potatoes
• 50 g whole wheat flour (plus a little extra for shaping)
• 1 teaspoon ground nutmeg

For the Sauce:

• 1 (225 g) can chopped tomatoes, and their juice
• 75 g cooked prawns
• 1 teaspoon olive oil
• 1 teaspoon chopped garlic
• 35 g peeled and finely chopped onions
• 35 g finely chopped mushrooms
• 1 tablespoon red wine (optional)
• 1 teaspoon finely chopped fresh oregano
• 1 teaspoon finely chopped fresh basil

Equipment Needed

• Oven
• Baking sheet
• Potato masher
• Large bowl
• Non-stick pan
• Large pot

Instructions

1. Preheat the oven to 180 degrees Celsius (350 degrees Fahrenheit).
2. Roast the sweet potatoes for about 35 minutes, or until the flesh is tender when pierced with a skewer. The internal temperature should reach around 205°F (96°C).
3. Let the potatoes cool slightly until they are comfortable to handle, then remove the skins. Don’t worry if they’re still a little warm, as this can help with the mashing process.
4. You should have about 175g of sweet potato flesh after peeling. Weighing the mashed potato will help ensure the gnocchi have the right texture.
5. In a large bowl, mash the flour and sweet potato together until you have a smooth mixture. Avoid overmixing, as this can lead to tough gnocchi.
6. Add the nutmeg and mix again. Season lightly with salt and pepper if desired. The nutmeg adds a subtle warmth that complements the sweetness of the potato.
7. On a lightly floured surface, roll a small ball of the potato mixture (about the size of a brazil nut). Flouring your hands also helps to prevent the dough from sticking.
8. Flatten the ball slightly with a fork to create the classic gnocchi ridges. These ridges help the sauce cling to the gnocchi.
9. Continue the process of making balls of potato mixture until all the dough has been used. You should end up with approximately 40 gnocchi.
10. Place the gnocchi in the refrigerator while you prepare the sauce. This helps them firm up and hold their shape during cooking.
11. Make the sauce: Heat the olive oil in a non-stick pan over medium heat.
12. Add the garlic and onion and fry until softened and translucent, about 3-5 minutes. Be careful not to burn the garlic, as it will become bitter.
13. Add the mushrooms and a little water if the pan is getting dry. The water helps to steam the mushrooms and prevent them from sticking.
14. When the mushrooms start to soften, add the red wine (or 1 tablespoon of water).
15. Let the mixture bubble for a few moments, allowing the alcohol to evaporate, then add the oregano.
16. Add the tomatoes and their juice to the pan and stir well to combine.
17. Add the prawns to the sauce, stir well, and simmer for 15-20 minutes, or until the sauce has reduced to a thickened consistency. The prawns should be cooked through and pink.
18. Stir in the basil to the sauce just before serving. This preserves the fresh flavour of the herb.
19. To cook the gnocchi: Bring a large pot of salted water to a rolling boil.
20. Carefully place the gnocchi one by one into the boiling water and cook for about 3 minutes. They are ready when they rise to the surface.
21. With a slotted spoon, transfer the cooked gnocchi to a dinner plate and top with the prepared sauce. Serve immediately.

Expert Tips & Tricks

• Roasting the Sweet Potatoes: Roasting intensifies the sweetness and gives a better flavour compared to boiling. Make sure the potatoes are completely soft before mashing.
• Gnocchi Dough Consistency: The key to light and fluffy gnocchi is using just enough flour to bind the dough. Too much flour will result in dense, chewy gnocchi.
• Freezing Gnocchi: You can freeze uncooked gnocchi. Spread them out on a baking sheet lined with parchment paper and freeze until solid. Then, transfer them to a freezer bag and store for up to 2 months. Cook directly from frozen, adding a minute or two to the cooking time.
• Prawn Preparation: For best results, use good-quality cooked prawns. If using frozen prawns, thaw them completely before adding them to the sauce.
• Sauce Flavour Boost: A pinch of red pepper flakes can add a nice kick to the tomato sauce.

Serving & Storage Suggestions

Serve the sweet potato gnocchi immediately after cooking, garnished with a sprinkle of fresh basil or Parmesan cheese (if not dairy-free). A drizzle of extra virgin olive oil adds a touch of richness.

Leftover gnocchi and sauce can be stored separately in airtight containers in the refrigerator for up to 3 days. Reheat the sauce gently on the stovetop or in the microwave. Reheat the gnocchi by pan-frying them in a little olive oil until golden brown, or by briefly boiling them in water.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	280 kcal	14%
Total Fat	8g	10%
Saturated Fat	1.5g	8%
Cholesterol	60mg	20%
Sodium	300mg	13%
Total Carbohydrate	45g	16%
Dietary Fiber	6g	21%
Sugars	10g	–
Protein	12g	24%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Gluten-Free: Substitute the whole wheat flour with a gluten-free all-purpose blend. You may need to adjust the amount of flour depending on the brand.
• Vegan: Omit the prawns for a vegan version. Consider adding other vegetables like zucchini or bell peppers to the sauce.
• Sauce Variations: Experiment with different herbs in the sauce, such as thyme or rosemary. You can also add a splash of cream (or coconut cream for a dairy-free option) for a richer sauce.
• Cheese lover: Add mozzarella cubes to the gnocchi when serving, then microwave for a few seconds!

FAQs (Frequently Asked Questions)

Q: Can I make the gnocchi dough ahead of time?
A: Yes, you can make the gnocchi dough up to a day in advance. Wrap it tightly in plastic wrap and store it in the refrigerator.

Q: Why are my gnocchi falling apart when I cook them?
A: This is usually due to too little flour in the dough or overcooking. Make sure to use enough flour to bind the dough and cook the gnocchi only until they rise to the surface.

Q: Can I use regular potatoes instead of sweet potatoes?
A: Yes, you can use regular potatoes, but the flavor will be different. Sweet potatoes add a subtle sweetness and a beautiful color to the gnocchi.

Q: How do I prevent the gnocchi from sticking together after cooking?
A: Toss the cooked gnocchi with a little olive oil or sauce to prevent them from sticking together. Serve them immediately.

Q: Can I bake the gnocchi instead of boiling them?
A: While traditionally boiled, you can bake the gnocchi after boiling them for a couple of minutes. Toss them in olive oil and bake at 200°C (400°F) for about 10-15 minutes until golden brown for a crispy texture.

Final Thoughts

I truly hope you give this sweet potato gnocchi with tomato and prawn sauce a try. It’s a delightful dish that’s sure to impress your family and friends. The combination of sweet, savory, and fresh flavours is simply irresistible. Feel free to experiment with different variations and make it your own. And if you do make it, please share your feedback – I’d love to hear what you think! Consider pairing it with a crisp white wine like Pinot Grigio to elevate the dining experience. Happy cooking!