Chicken Kotletki With Sour Cream Sauce 1 filling 3/4 lb fresh mushrooms,finely chopped 1/4 t salt 1 pepper,Freshly Ground 1 patties 2 lb skinless,boneless chicken breasts,,ground 2 c fresh bread crumbs 1/2 c light cream 1 egg,lightly beaten 1 1/2 t salt 1 cayenne pepper,nutmeg and black pepper 2 T butter 1 T oil 1 sauce 2 T butter 1/4 c finely green onions,Chopped 2/3 c whipping cream 2 t white vinegar 2/3 c sour cream 1/4 t salt Filling: Melt butter in skillet and over med.high heat, saute mu