I found this online. I used some cinnamon and honey:
Sweet Potato Soup
2 teaspoons canola oil
1/2 cup chopped shallots
3 cups (1/2-inch) cubed peeled sweet potato
1 1/2 cups (1/4-inch) sliced peeled carrots
1 tablespoon grated ginger
2 teaspoons curry powder
3 cups fat-free, less-sodium chicken broth
1/2 teaspoon salt