Coca Cola Barbecue Sauce

1 12 ounce can Classic Coke
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 to taste

In a medium saucepan, combine all ingredients. Bring to a boil. Reduce heat to medium low and simmer, covered for 30 to 45 minutes or until sauce is thickened, stirring occasionally. Strain if desired. Season with hot pepper sauce.