3 lbs. round steak, cut in serving pieces
1 tbsp. vinegar
2 tbsp. brown sugar
1 tsp. paprika
1 tsp. dry mustard
1 med. onion, sliced
1/2 c. catsup
1 c. water
1 tbsp. Worcestershire sauce
1/2 tsp. chili powder

Sprinkle salt, pepper and flour steak pieces. Lightly brown meat. Place in crock pot. Add seasonings and remaining ingredients. Turn to low setting; cook for 8 hours or until meat can flake easily. Serve as steak on buns.