1 lb. hamburger, browned
1 can corned beef
1 medium onion, diced
1 small bottle ketchup
1 Tbls. vinegar
1/4 cup brown sugar
1 1/2 tsp. chili powder
1/4 - 1/2 cup water, as needed

Combine all ingredients and bake in 400 degree oven for 1 hour.

Serve on hamburger buns.