Combine the ingredients in a heavy saucepan and gradually bring to a boil over medium heat. Reduce the heat slightly to obtain a gentle simmer. Simmer the sauce until reduced by 1/4, 6 to 8 minutes. Transfer the sauce to clean jars and let cool to room temperature, then refrigerate until serving. The sauce will keep for several months, refrigerated.
Use as you would any sauce, noting the strong affinity this sauce has for chicken, ribs, and pork.
Recipe courtesy of Steven Raichlen, author of The Barbecue Bible and Barbecue Bible Sauces, Rubs, and Marinades (Workman Publishing)