Creamy Sweet Potato Soup

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Looking for a special soup to serve this holiday season? Consider this creamy sweet potato soup! It has a base of onions, celery, leeks, and garnet sweet potato yams. It’s seasoned with warm holiday spices of cinnamon and nutmeg, giving the soup hints of pumpkin pie and glazed yams, as if someone slipped some of each into the blender when the soup was being puréed.

We adapted this recipe from one in an old issue of Bon Appetit, changing it up slightly—ditching the maple syrup the original called for (the sweet potatoes are sweet enough), and cutting back on the cream. It’s terrific with a little sour cream or plain yogurt swirled in on top!

Creamy Sweet Potato Soup Recipe

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  • Prep time: 15 minutes
  • Cook time: 50 minutes
  • Yield: Serves 6 to 8

Ingredients

  • 2 Tbsp butter
  • 1 medium onion, chopped (about 1 cup)
  • 2 celery ribs, chopped
  • 1 medium leek, white and light green parts only, sliced (see How to Clean Leeks)
  • 1 clove garlic, chopped (1 teaspoon)
  • 1 1/2 pounds (about 2 large) orange-flesh sweet potatoes (a.k.a. yams), peeled, cut into 1-inch pieces (about 5 cups)
  • 4 cups chicken stock (use vegetable broth for vegetarian option)
  • 1 cinnamon stick
  • 1/4 teaspoon ground nutmeg
  • 1/4 cup whipping cream
  • 3/4 cup milk
  • Salt
  • Pepper

Method

1 Melt the butter in a large, thick-bottomed pot over medium-high heat. Add the chopped onions and sauté for 3 to 4 minutes, then add the celery and leeks and sauté for 5 more minutes until softened. Add the garlic and cook a minute more.

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2 Add the sweet potatoes, chicken stock, cinnamon stick, and nutmeg. Increase the heat to high and bring to a boil. Reduce heat to a simmer, and simmer uncovered until the sweet potatoes can be easily pierced with a fork, about 20 minutes.

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3 Remove cinnamon stick. Use an immersion blender to purée the soup or work in batches and purée the soup in a standing blender.

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4 Add the cream and milk to the soup, and heat on medium until the soup is heated through. Add salt and pepper to taste.

Sprinkle with more black pepper and swirl some water-thinned sour cream or plain yogurt over the soup to serve.

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Creamy Sweet Potato Soup

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Showing 4 of 24 Comments

  • susan sullivan

    excellent soup.. I added 2 tsp cayenne, just to give it some kick…

  • Carol

    FYI: Soy is NOT healthy! Try using coconut milk, almond milk or any nut milk instead of the soy as a sub. for the milk and/or cream. (coconut cream works, too)
    Also: I just had a recipe for sweet potato soup, and they used 5 spice powder as the only seasoning: it was AMAZING! Didn’t use stock, only cream as the base, and it was so good!

  • Kate Nicholls

    This was delicious! I also wanted to try a substitute for the cream. I added a teaspoon of corn starch to whole milk and blended this in instead. It did not curdle and came out creamy and smooth.

  • Caroline

    I see that a lot of people are looking to substitute the cream and milk with something non-dairy. I am lactose intolerant and I find that coconut milk is the closest to half and half and has less caloriest too. Its also a great sub for milk when I make my ice cream

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