Sweet Potato Zucchini Vichyssoise

Cold soup is one of those things that sounds unappealing in theory and genuinely surprises you in practice. I was sceptical the first time I made vichyssoise that classic French chilled potato-leek soup and then I ate a bowl on a warm evening and immediately understood why it's been around for over a century. Silky, subtle, deeply satisfying in a way that feels effortless.

This Sweet Potato Zucchini version updates the original with ingredients I find more interesting. Sweet potato adds natural sweetness and a beautiful golden-orange colour. Zucchini blends to an almost imperceptible smoothness and keeps things light. A glug of good olive oil at the start for the leeks and garlic, then the vegetables and broth, then blending the process is simple enough that the result feels disproportionately elegant.

The Method

Sauté leeks and garlic in butter or olive oil until soft about 10 minutes, low and slow so they don't brown. Add cubed sweet potato, sliced zucchini, and enough vegetable or chicken broth to just cover everything. Simmer until completely tender, about 20 minutes. Blend until completely smooth. Season well, then refrigerate until cold at least 2 hours, ideally overnight.

The flavour genuinely improves with time. Making this a day ahead gives the ingredients time to fully meld and the soup develops a more rounded, integrated flavour. Serve in chilled bowls with a swirl of cream or coconut milk, fresh chives, and a crack of black pepper.

Warm Version

This works equally well served warm. Skip the chilling step and serve immediately after blending and seasoning it becomes a comforting autumn soup that works well alongside crusty bread or a simple salad. The versatility is one of its best qualities.

Ingredients

• 1 Tbsp butter (or an additional Tbsp olive oil for a vegan version)
• 1 Tbsp extra virgin olive oil
• 5 cups chopped leeks, white and light green parts (I used 3 large leeks)
• 4 cups chopped peeled sweet potatoes (about 2 large potatoes)
• 2 cups chopped zucchini (1 large zucchini)
• 6 cups low-sodium vegetable broth
• kosher salt and freshly ground black pepper, to taste

Instructions

1. Sauté the Aromatics

• In a large soup pot, heat the olive oil over medium heat.
• Add the chopped onions and garlic and sauté until the onions turn translucent and fragrant, about 5 minutes.

2. Add Sweet Potatoes and Zucchini

• Stir in the diced sweet potatoes and zucchinis, allowing them to cook for an additional 5 minutes. This step helps to enhance their flavors.

3. Simmer with Vegetable Broth

• Pour in the vegetable broth, ensuring it covers the vegetables. Bring the mixture to a gentle boil.

4. Reduce Heat and Simmer

• Reduce the heat to low, cover the pot, and let it simmer for about 20-25 minutes or until the sweet potatoes are tender.

5. Blend Until Smooth

• Using an immersion blender or a countertop blender, carefully puree the soup until it’s velvety smooth.

6. Add Coconut Milk

• Stir in the unsweetened coconut milk to add creaminess to the soup. Season with salt and pepper to taste. Adjust the seasoning to your preference.

7. Serve and Garnish

• Ladle the Sweet Potato Zucchini Vichyssoise into bowls.
• If desired, garnish with fresh chives for a burst of color and flavor.

8. Enjoy!

• Serve your Sweet Potato Zucchini Vichyssoise hot, alongside a slice of crusty bread or a light salad.

This Sweet Potato Zucchini Vichyssoise is a testament to how a classic dish can be transformed into something extraordinary. With the rich creaminess of coconut milk and the natural sweetness of sweet potatoes and zucchinis, it’s a soup that’s both indulgent and nutritious. Whether you’re looking for a comforting meal on a chilly evening or an elegant starter for a dinner party, this recipe is sure to impress. Give it a try, and savor the blend of flavors and textures that make this vichyssoise a true culinary masterpiece.

Nutrition Per Serving

• Calories per Serving:200 calories
• Total Fat: 10g
• Saturated Fat: 7g
• Trans Fat: 0g
• Cholesterol: 0mg
• Sodium: 600mg
• Total Carbohydrates: 26g
• Dietary Fiber: 4g
• Sugars: 8g
• Protein: 3g
• Vitamin D: 0%
• Calcium: 4%
• Iron: 6%
• Potassium: 580mg

Please note that these values are approximate and can vary based on factors such as the specific brands of ingredients used and portion sizes. It’s always a good idea to calculate precise nutritional information if you have specific dietary concerns.