Hamburger Sauce - cooking recipe

Ingredients

4 Tbsp. brown sugar
4 Tbsp. vinegar
1 Tbsp. dry mustard
1 (32 oz.) bottle catsup
green pepper, chopped
celery, chopped
onion, chopped

Preparation

Mix all together; warm up in a kettle.
Pour over 20 hamburger patties in a pan; put in the oven at 350\u00b0 for 45 minutes to 1 hour, or until hamburgers are done.