Butter nut squash or sweet potato? Which to use? With this recipe, either is fine. It some times comes down to what I have on hand and need to use. This soup is delightfully warm, colorful and flavorful–perfect for a crisp day. If you want the soup richer, use organic beef broth instead of chicken or vegetable broth. If you like things a little spicier, add in a little hot pepper. Serve with warm corn bread or over your favorite hot grain like rice, barley or quinoa.