This is a pretty simple version that is easy to make and actually tastes pretty damn good.
BBQ Sauce:
To prepare Barbecue Sauce: Combine the ketchup, Worcestershire sauce, lemon juice, brown sugar, mustard, water and garlic in a medium saucepan. Place over very low heat and simmer, stirring occasionally, 1 hour. For really smoky flavor, place on the grill away from the heat source during the last hour of smoking. Stir in the butter or drippings and cook 15 minutes longer. Pour into a container with a tight-fitting lid and refrigerate to store, up to 2 weeks. Makes about 3 cups.
1 1/4 cups ketchup
1/3 cup Worcestershire sauce
1/3 cup lemon juice
1/3 cup packed brown sugar
1 tablespoon yellow mustard
1/4 cup water
1 large clove garlic, crushed
1/4 cup butter (1/2 stick) or pan drippings* from barbecue