Barbecued Spareribs
["1 1/2 c. water", "1 (8 oz.) can tomato sauce", "2 medium onions", "3 Tbsp. vinegar", "1 tsp. salt", "1 1/2 Tbsp. sugar", "1 tsp. chili powder", "3 Tbsp. Worcestershire sauce", "1 tsp. dry mustard", "3 1/2 to 4 lb. ribs"]
["Cut the ribs into serving pieces.", "Mix all of the remaining ingredients in a saucepan and heat to boiling.", "Pour sauce over meat.", "Chill for several hours or overnight.", "Bake, covered, in a 450\u00b0 oven for 30 minutes.", "Uncover and bake at 350\u00b0 for 1 1/2 hours."]
["water", "tomato sauce", "onions", "vinegar", "salt", "sugar", "chili powder", "Worcestershire sauce", "dry mustard", "ribs"]