Ingredients
3 cups ketchup
1 cup pure maple syrup
3/4 cup light beer, such as a pale ale
1/2 cup honey
1/4 cup cola
2 teaspoons Blue Ribbon Hot Sauce, or other prepared hot sauce
1 teaspoon cayenne pepper
1 serrano chile, seeds removed, if desired, chopped
Preparation
Combine all ingredients in a heavy-bottomed nonreactive saucepan and place over medium-high heat and bring to a boil. Reduce heat to medium-low and simmer, uncovered, stirring occasionally, until mixture is reduced to 4 cups, about 1 1/2 hours.
Strain sauce through a fine-mesh sieve. Use immediately or let cool completely.