Barbecue Sauce
["1/3 c. chopped onion", "3 tsp. butter", "1 c. catsup", "1/4 c. vinegar or lemon juice", "2 tsp. brown sugar", "1/2 c. water", "2 tsp. prepared mustard", "1 tsp. Worcestershire sauce", "salt", "1/2 tsp. pepper"]
["Cook slowly onion in butter until tender; add remaining ingredients.", "Cover.", "Simmer 15 minutes."]
["onion", "butter", "catsup", "vinegar", "brown sugar", "water", "mustard", "Worcestershire sauce", "salt", "pepper"]