1 1/2 lb. ground beef
2 c. ketchup
1 tsp. chili powder
1 tbsp. brown sugar
1 tsp. black pepper
1 tsp. mustard (dry) or 1/2 tsp. prepared
1 tbsp. vinegar
1 tsp. salt

Mix all ingredients in skillet. Cook 20 minutes or until meat is done, stirring often. Add water if necessary. Serve on warmed or toasted buns.