Barbecue Sauce
["1 gal. vinegar", "16 oz. bottle ketchup", "1 lb. butter", "1/2 tsp. black pepper", "1/2 tsp. red pepper", "1 tsp. sugar", "3 (5 oz.) bottles A.1. sauce", "3 (5 oz.) bottles Heinz 57 sauce", "1 (5 oz.) bottle Worcestershire sauce", "1 small bottle Texas Pete"]
["Mix all ingredients in a large pan and boil for 2 hours."]
["vinegar", "bottle ketchup", "butter", "black pepper", "red pepper", "sugar", "bottles", "bottles", "Worcestershire sauce"]