Sweet-and-Sour Pork Tenderloin

Make the sweet-and-sour sauce: Combine the pineapple juice, ketchup, vinegar, sugar, rum, soy sauce and hot sauce in a small saucepan and bring to a boil. Cook, stirring occasionally, until reduced and thickened to a barbecue sauce consistency, about 20 minutes. Remove from the heat and let cool. This makes about 1¼ cups of sauce.