Chicken Parisienne - cooking recipe

Ingredients

2 -4 whole boneless chicken breasts
2 tablespoons butter
1 cup sour cream
1/2 cup cooking sherry or 1/4 cup white vinegar
1 medium onion, sliced
1 (10 3/4 ounce) can cream of chicken soup

Preparation

Season chicken with salt and pepper; melt butter in a skillet and brown chicken breasts on both sides.
Arrange chicken in a 9 X 13 baking dish and top with sliced onion.
In a large mixing bowl combine remaining ingredients, mix well and pour over chicken and onions.
Bake at 450 degrees uncovered for 50 min to an hour.