| 4 12 lb ground beef | | 1 1/2 cup onion chopped | | 2 1/4 cup catsup | | 3 tbl prepared mustard | | 3 tbl worcestershire sauce | | 2 tbl vinegar | | 2 tbl sugar | | 1 tbl salt | | 1 tbl pepper | | 18 x hamburger buns split |
| | In a Dutch oven, cook beef and onion until meat is browned and onion is tender; drain. | | Combine catsup, mustard , worcestershire , vinegar , sugar, salt and pepper ; stir into beef mixture. | | Heat through. Serve on buns. |
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