Irene'S Spareribs
["1/4 c. vinegar", "1 bottle catsup", "2 Tbsp. mustard", "1 onion, chopped", "2 Tbsp. sugar", "salt and pepper"]
["Pour over about 2 pounds of spareribs and bake until tender."]
["vinegar", "catsup", "mustard", "onion", "sugar", "salt"]