Barbecue Sauce
["1/4 c. vinegar", "1/2 c. water", "1 1/2 tsp. salt", "1/4 c. butter", "1 large onion, sliced", "2 Tbsp. brown sugar", "1 Tbsp. prepared mustard", "1/2 tsp. pepper", "1/2 c. ketchup", "1 lemon (squeeze juice)", "2 Tbsp. Worcestershire sauce", "1 1/2 tsp. liquid smoke"]
["Mix vinegar, brown sugar, salt, butter, lemon juice, water, Worcestershire sauce, mustard, pepper and ketchup.", "Bring to a boil for 20 minutes (uncovered).", "Add onion and liquid smoke. Bake for 1 hour at 300\u00b0 to 325\u00b0."]
["vinegar", "water", "salt", "butter", "onion", "brown sugar", "mustard", "pepper", "ketchup", "lemon", "Worcestershire sauce", "liquid smoke"]