12 lbs. ground beef
51 oz. can tomato soup
1 tbsp. Worcestershire sauce
1/4 c. vinegar
1 c. brown sugar
1/4 c. prepared mustard
3 c. ketchup
Salt and pepper
Lg. onion, grated

Brown ground beef and onion. Add remaining ingredients and simmer, stirring constantly, so mixture doesn't scorch. Serve on buns.