1/2 c. butter
1/2 c. chopped onion
1/2 c. catsup
1/4 c. firmly packed brown sugar
3 tbsp. Worcestershire sauce
1 1/2 tsp. salt
1/8 tsp. pepper
Dash Tabasco sauce (optional)

Saute onion in butter. Add remaining ingredients. Baste hamburger, use for making sloppy joes or pour over meat loaf.