Heat 2 tablespoons of water in a large saucepan over medium-high heat. Add onion and cook until softened, adding more water as needed, about 5 minutes. Add the potatoes and apple and stir in the broth. Bring to a boil, lower the heat and simmer until potatoes are very soft, about 45 minutes.
Puree the potato/apple/broth mixture in a blender, then stir in the chopped candy and blend. Return the mixture back to the saucepan. Add the milk, sherry, nutmeg, and cinnamon. Season with salt and pepper, to taste.
Ladle the soup into bowls and garnish with whipped cream and a sprinkle of cinnamon. Serve immediately.
Copyright 2002, Janette Barber and Christina Deyo, all rights reserved