Pineapple Rum Sauce

Ingredients

 * 1 cup pineapple juice (canned)
 * 1 cup sugar
 * ½ cup white rum
 * 3 cups fresh pineapple
 * 1 tbsp pistachio nuts, coarsely chopped

Directions

 * 1) Simmer first two ingredients until sugar dissolves and a syrup is formed, add rum and cool.
 * 2) Cut pineapple into ½-inch dice.
 * 3) Pour the pineapple rum sauce over the pineapple.
 * 4) Marinate for several hours.
 * 5) Place 1 scoop mango ice cream in a 6-oz wineglass.
 * 6) Top with 3 to 4 oz pineapple rum mixture.
 * 7) Garnish with pistachio nuts.