Ingredients

• 1 very large onion, finely chopped
• 3 cloves garlic, finely chopped
• 1/2 cup butter
• 3 tablespoons apple cider vinegar
• 1 cup bottled water
• 1 1/3 cups bottled chili sauce
• 2 tablespoons brown sugar
• 1 teaspoon cayenne pepper
• 3 tablespoons reduced-sodium Worcestershire sauce
• 1/2 tablespoon mustard
• 1/2 lemon, juice of
• 1 can beer (chef's choice)
• black pepper, to taste