Hot Dog Sauce - cooking recipe

Ingredients

10 lb. hamburger
1 large onion, cut in small pieces
36 oz. bottle ketchup
1 Tbsp. mustard
2 Tbsp. vinegar
salt and pepper to taste
sugar (if desired)

Preparation

Put hamburger in a kettle with a little water.
Cook until almost done, then add onion, ketchup, vinegar and mustard and cook until well done.
Mash the hamburger well.
Cook on low heat.