Barbecued Spareribs
["3 lb. pork spareribs", "1 medium size onion", "2 Tbsp. butter", "2 Tbsp. vinegar", "2 Tbsp. brown sugar", "1 Tbsp. Worcestershire sauce", "1 tsp. mustard (salad style)", "1/4 c. lemon juice", "1/2 c. sliced celery", "1 tsp. salt", "1 c. ketchup", "1/2 c. water"]
["Cut ribs in servings and place in single layer in pan.", "Bake, uncovered, 30 to 40 minutes at 300\u00b0 or until brown."]
["pork spareribs", "onion", "butter", "vinegar", "brown sugar", "Worcestershire sauce", "salad style", "lemon juice", "celery", "salt", "ketchup", "water"]