Apple Cider Barbecue Sauce

Place peppercorns in a square of cheesecloth, and tie securely with kitchen twine. In a small stockpot, combine all the ingredients, and bring to a boil over medium-high heat.

Reduce heat to medium low, and simmer sauce until thickened, about 1 1/2 hours. Pass sauce through a strainer, and discard solids.