1 c. chopped onion
1/4 c. salad oil
1 (8 oz.) can tomato sauce
1/4 c. water
1/4 c. brown sugar
1/4 c. lemon juice
3 tbsp. Worcestershire sauce
2 tbsp. mustard
2 tsp. salt
1/4 tsp. pepper

Cook onion in oil. Add rest of the ingredients and simmer 15 minutes. Bake ribs until 3/4 done. Drain. Put back in pan, add sauce, and finish baking uncovered.