12 ounces Coca Cola
1-1/2 cups Ketchup
1 Cup Finely Chopped Onion
1/4 Cup Cider Vinegar
1/4 Cup Worcestershire Sauce
1 teaspoon Chili Powder
1 teaspoon Salt
Hot Pepper Sauce (Tabasco etc) to taste
Bring ingredients just to boil, then reduce to simmer for 30 to 45 minutes and sauce thickens.