Description

This comforting Sweet Potato Soup is a creamy, spiced puree packed with the natural sweetness of sweet potatoes and the warm flavor of cumin. Featuring a blend of sautéed onions, leeks, and garlic, simmered gently in low-sodium stock, then blended smooth and enriched with cream, it’s perfect for a cozy meal. Garnished with crunchy toppings like flatbread strips or nuts, this soup balances creamy textures with delightful crunch.

Ingredients

Scale

Soup Base

2 tbsp extra virgin olive oil
30g / 2 tbsp unsalted butter (or more oil)
2 onions, diced
2 leeks, white and pale green part only, quartered, cut into 1cm / 1/2″ slices
2 garlic cloves, chopped
1 kg / 2 lb sweet potato, peeled, quartered lengthwise, cut into 2cm / 0.8″ chunks
1 tbsp cumin powder
1.25 litre / 1.25 quarts chicken or vegetable stock, low sodium
1.5 tsp cooking / kosher salt
1 tsp black pepper

Finishing and Garnish

1/3 cup cream (any type) or an extra knob of butter
To drizzle/dollop: extra virgin olive oil, cream, yogurt, or sour cream
Something crunchy for garnish: flatbread strips, croutons, pistachios, pepitas, or crispy fried shallots

Instructions

Sauté aromatics: Heat the extra virgin olive oil and melt the butter in a large heavy-based pot over medium heat. Add the diced onions, sliced leeks, and chopped garlic. Cook for about 5 minutes until softened and fragrant, stirring occasionally to prevent browning.
Add sweet potato and cumin: Add the peeled and chopped sweet potato chunks to the pot along with the cumin powder. Stir regularly and cook for another 3 minutes to toast the cumin and slightly soften the sweet potatoes, building flavor.
Simmer: Pour in the low-sodium chicken or vegetable stock, then season with salt and black pepper. Bring the mixture to a gentle simmer and cook uncovered for 20 minutes, or until the sweet potatoes are very tender when pierced with a fork.
Blend: Remove the pot from the heat. Using a hand-held stick blender, blend the soup until completely smooth and creamy. Alternatively, transfer in batches to a countertop blender if preferred. Stir in the cream or an extra knob of butter to enrich the texture.
Garnish and serve: Ladle the soup into bowls. Drizzle each serving with a little yogurt, cream, or olive oil, and sprinkle with your choice of crunchy garnish such as flatbread strips, croutons, pistachios, or crispy fried shallots for textural contrast.

Notes

Note 1: Use only the white and pale green parts of the leeks to avoid toughness and bitterness.
Note 2: Choosing low-sodium stock helps control the saltiness of the finished soup.
Note 3: Crunchy garnishes add textural interest and visual appeal; flatbread strips are pictured but nuts or fried shallots work well.
Note 4: If using a countertop blender instead of a stick blender, blend the soup in batches and be careful of hot liquids splattering.

Prep Time: 15 minutes
Cook Time: 28 minutes
Category: Soup
Method: Stovetop
Cuisine: American

Keywords: sweet potato soup, creamy soup, cumin soup, easy fall soup, healthy soup, stovetop soup, vegetarian soup