You are here: Home » Recipes » Sweet Potato Bisque Sweet Potato Bisque Recipe by Relish ContributorKitchen Tested Yield 4 servings This smooth sweet potato soup hits the spot when you want a creamy soup. PrintEmail Ingredients 1 tablespoon butter1 onion, chopped3 cups (1/2-inch) chunks peeled sweet potatoes (yam)2 cups canned chicken or vegetable broth1/2 teaspoon dried thyme leaves1/8 teaspoon cayenne1 cup skim milk Salt and pepper Instructions Melt butter and sauté onion over medium heat until tender, about 4 minutes. Toss in sweet potato and chicken broth and bring to a boil. Cover and simmer on low heat for 15 minutes until potatoes are fork tender. Blend mixture in a food processor until smooth and transfer back to pot. Combine with thyme, cayenne and milk and simmer on low until heated through.