1 lb. hamburger
1 egg
1 sm. onion
1/2 c. crackers

1 1/2 c. catsup
1 1/2 tbsp. vinegar
3/4 c. brown sugar
1/2 tbsp. mustard

While my meatballs are in oven, I turn my crockpot on high and put my sauce in to simmer. When the meatballs are done, I turn the crockpot on low and stir in my meatballs.