Heat the butter in a large pot over medium heat. Add the onion and garlic and cook until softened, about 5 minutes.
Add the sweet potatoes, vegetable broth, thyme, and black pepper. Bring to a boil, reduce heat and simmer for 20 minutes or until the sweet potatoes are tender.
Transfer the soup to a blender or food processor and puree until smooth. Return the soup to the pot and stir in the cream.
Taste and season with salt if needed. Serve hot.
Interesting Facts
Sweet potatoes contain many vitamins and minerals, including Vitamin A, Vitamin C, iron, and calcium.
Bisque is a type of soup that is traditionally made with a creamy base and seafood.
This sweet potato bisque is a great way to enjoy the comforting flavors of the season in a healthy way.