How To make Pureed Zucchini Soup(Pressure Cooked)

2 tablespoons butter or oil
1 large onion

coarsely chopped
2 cloves garlic :

crushed
2 small potatoes (1/2 lb)

cut in 1/2" cubes
2 large carrots :

cut in 1/2" slices
4 large zucchini (2 lbs)

cut in 1" slices
4 cups vegetable stock :

or
bouillon 1 tablespoon minced fresh basil

or
1 teaspoon dried basil
salt and pepper :

to taste
serves 4 to 6
Heat the butter in the pressure cooker. Saute the onions and garlic for 1 minu te. Add the potatoes and saute for another 1 to 2 minutes. Add the remaining ingredients and stir to blend. Lock the lid in place and over high heat bring to high pressure. Adjust the heat to maintain high pressure and cook for 5 min utes. Let the pressure drop naturally or use a quick release method. Remove t he lid, tilting it away from you to and pepper to taste.