4. In a sauce pan heat butter (oil) over medium heat and add chopped onion. Cook for 1 minute and add cumin and red pepper flakes and stir. Add vegetable stock (can use chicken stock) and bring to a boil.
Creamy Sweet Potato Soup Recipe - easy and effortless to make, this soup is light and nutritious, perfectly paired with a sandwich or salad for a healthy lunch or dinner. Kid friendly and ready in under 30 minutes.