Place all ingredients into a large soup pot and bring to a medium boil.
Cook at a medium boil until the apples and sweet potatoes are soft.
Using a hand blender, blend the soup until smooth directly in the soup pot you just cooked it in. If you don't have a hand blender, you'll have to transfer the contents to a regular blender a little at a time. Be careful, it's hot!
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.