BAKED HAMBURGERS WITH SAUCE

This is another old recipe from my childhood. My cousin used to make these and I though they were the best hamburgers ever!

2 lbs ground beef
1 tsp salt
1/2 tsp pepper
4 tbsp brown sugar
1 tsp dry mustard
4 tbsp vinegar
1/2 cup water
1/2 cup ketchup
1/2 cup chopped onion

Combine the salt and pepper with the ground beef in a large bowl, mixing in well. Form the mixture into patties and place in a large baking pan or dish.
In a small bowl, combine the brown sugar, mustard, vinegar, water, ketchup, and onion. Stir with a whisk to combine well. Pour the mixture over the patties.

Bake in a 350 degree oven for 45 minutes.