Barbecue Sauce

Ingredients

• 2 TBSP Butter
• 1 Medium Onion Chopped Fine
• 4 TBSP Lemon Juice
• 2 TBSP Vinegar
• 2 TBSP Brown Sugar
• Salt and pepper to taste
• 3 TBSP. Worcestershire sauce
• 1 Cup Ketchup
• 1 Cup Water
• 1 TBSP Mustard