Ingredients
- 1 onion
- 1 pound beef
- 1 cup ketchup
- 2 tablespoon vinegar
- 2 tablespoon mustard
- 2 tablespoon worcestershire sauce
- 2 tablespoon sugar
- 1 teaspoon celery seed
In a frying pan, brown ground beef and onion. Add remaining ingredients and cook slowly for 15 minutes or more. Serve hot by scooping the mixture onto toasted buns.
