1 lb. hamburger
1 onion
2 tbsp. vinegar
2 tbsp. Worcestershire sauce
2 tbsp. prepared mustard
2 tsp. sugar
1 c. ketchup

Saute onions in frying pan and add vinegar, sauce, mustard, sugar, and ketchup. Heat through and add hamburger. Cook over medium heat until hamburger in cooked. Simmer for about 1/2 hour.