Butternut squash pairs perfectly with both sweet and savory ingredients. Some sweet spices that go well with this soup are ground cinnamon, brown sugar, and nutmeg. A drizzle of heavy cream and maple syrup, along with roasted nuts creates a lovely rich, sweet dish. If you prefer savory you can experiment with curry powder, cumin, cayenne pepper, or chili powder. Garnish the top of the soup with fresh herbs, such as rosemary or fresh thyme.