Butternut Squash Bisque - Pressure Cooker

1 tablespoon olive oil
2 large onions, peeled and cut into large pieces
1 (48 ounce) can chicken broth or vegetable stock (for vegetarian version)
3 lbs butternut squash, peeled,seeded,and cut into 1 inch chunks
3 large macintosh apples, peeled,cored and cut into 1 inch pieces (or your favourite apple)
3/4 cup long-grain rice
2 teaspoons ground cumin
2 teaspoons ground ginger
1 teaspoon grated nutmeg
1 pint half-and-half (fat-free works too) or milk, for thinner consistency
salt, to taste

In a 6 quart pressure cooker, sauté onions in olive oil for approximately 3 minutes, or until they begin to soften, but not brown.
Add remaining ingredients, except half& half and salt, and place lid on cooker.
Bring up to high pressure, then lower heat and cook for 10 minutes.
Release pressure as directed by manufacturer.
Open lid and allow to cool slightly.
Place ingredients into blender or food processor, along with half& half and salt, if desired.
Puree until smooth.