Salisbury Steak Burger

1/2 C water
1 /2 C catsup
1 /2 C sugar
2 T onion diced
2 T mustard
2 T vinegar
3 /4 tsp salt
1 lb hamburger

In a large bowl, mix all ingredients except hamburger until you get a smooth and well-combined sauce. Set sauce aside. Shape hamburger into patties and brown in a skillet. Drain grease from burgers and then pour sauce over hamburgers and bake 30 to 40 minutes at 350 degrees.