Barbecued Spare Ribs

Difficulty: easy Prep Time: Five Minutes Total Time: 30 Minutes or Less
Spare ribs
1 cup ketchup
1 tsp salt
1 tsp mustard
1/4 cup brown sugar
1 small onion
1 cup water
2 tsp Worchestershire sauce
1/2 vinegar

Boil ribs---Bake 1 hr. in sauce at 350ยบ