2 lb. hamb.
1 lg. onion, diced
1/2 to 1 c. ketchup
1 tbsp. brown sugar
1 tbsp. vinegar
1 tsp. mustard
1 tsp. Worcestershire sauce
1 tsp. salt

Brown hamburger and onion, then drain grease. Add remainder of ingredients. Turn heat low and simmer at least 30 minutes.