Pureed Squash Soup with Mascarpone Swirl

Ingredients:
- 1 yellow onion, chopped
- 2 tablespoons vegetable oil
- 1 butternut squash, peeled and cut into 1/2-inch cubes
- 1 large parsnip, peeled and cut into 1/2-inch cubes
- 1 crisp apple, such as Gala or Fuji, peeled and cut into 1/2-inch cubes
- 1 quart water plus 1 vegetable bouillon cube, or 1 quart chicken broth
- 1/4 cup mascarpone thinned with a little milk or broth

Directions:
- In a 2-quart saucepan or soup pot, saute onion in oil for 5 minutes until limp.
- Add vegetables and apple and stir until coated.
- Add water and bouillon cube (or broth), bring to a boil, reduce heat, cover, and simmer for 35 minutes or until vegetables are very tender when pressed with the back of a spoon.
- Puree with an immersion blender or in batches in a regular blender.
- Mix mascarpone with milk or broth until thinned enough to pour; and transfer to a squeeze bottle.
- Ladle soup into cups or bowls and squirt mascarpone on top of each serving.