Oven-Barbecued Ribs
["4 lb. spareribs", "1 lemon, sliced", "1 large onion, sliced", "1 c. catsup", "1/3 c. Worcestershire sauce", "1 tsp. chili powder", "1 tsp. salt", "dash of cayenne pepper", "1 1/2 c. water"]
["Place ribs in a 450\u00b0 oven for 30 minutes.", "Drain fat.", "Place slices of lemon and onion on ribs.", "Put remaining ingredients in saucepan and bring to a boil.", "Pour sauce over ribs.", "Put in a 350\u00b0 oven and bake about 1 1/2 hours.", "Baste every 15 minutes."]
["spareribs", "lemon", "onion", "catsup", "Worcestershire sauce", "chili powder", "salt", "cayenne pepper", "water"]