In a soup pot, heat the onion and carrots in ¼ cup of vegetable broth over medium heat until softened, about 5 minutes.
Add the rest of the vegetable broth as well as the water, pumpkin, apple, ginger, salt, and nutmeg. Bring to a boil, then reduce the heat to medium low and simmer for 30 minutes, stirring occasionally.
Transfer to a food processor or blender and blend the soup until completely smooth. Pour into bowls and serve. Enjoy!