1/4 cup frozen pineapple juice concentrate, thawed
3 tablespoons unsalted butter
2 tablespoons dark rum
Banana-strawberry frozen yogurt or vanilla ice cream
Mixed tropical fruits (such as mango, papaya, banana and pineapple), cut into 1/2-inch pieces
Directions
Combine first 5 ingredients in heavy medium heat until sugar dissolves. Boil gently until reduced to 1 cup, about 10 minutes. Cool to lukewarm. Mix in rum. (Can be prepared 2 days ahead. Cover and refrigerate. Reheat to lukewarm and whisk to blend before serving.)
Scoop frozen yogurt into balloon-shaped glasses or sundae dishes. Spoon lukewarm sauce over. Top with fruit and serve immediately.