Barbecue Sauce
["1 large onion, chopped", "2 Tbsp. vinegar", "2 Tbsp. sugar", "1 c. catsup", "1/4 tsp. salt", "3 Tbsp. Worcestershire sauce", "1/2 tsp. mustard", "1/2 c. water"]
["Mix all ingredients in a saucepan.", "Bring to boil.", "Cover; simmer for 10 minutes."]
["onion", "vinegar", "sugar", "catsup", "salt", "Worcestershire sauce", "mustard", "water"]