2 lbs. sirloin steak, sliced 1/4 inch thick
1/2 c. butter
2 c. coarsely chopped onion
1/2 lb. mushrooms
2 tbsp. flour
1/2 tsp. salt
Dash of pepper
1 (10 1/2 oz.) can beef bouillon
1/4 c. dry white wine
1/2 pt. (1 c.) dairy sour cream
1 tsp. Worcestershire sauce

Cut steak into strips 2 x 1/4 x 1/4 inches. Heat 1/4 cup butter in pan. Brown meat well. Keep hot. Remove from pan. Add remaining butter and onion. Cook until tender. Stir in flour, salt, pepper. Add bouillon. Cook until thickened, stirring constantly. Stir in wine, sour cream and Worcestershire sauce. Add meat, mix, cover and heat. Serve on hot buttered noodles.