In a small noncorrodible pot, combine the sugar, ginger, lemon grass, water and dessert wine. Bring to a boil over high heat and boil until reduced to 2/3 cup (165 ml), about 5 minutes. Remove from the heat and cool.
Peel the pineapple. Quarter lengthwise, core and cut into 1/2-inch (1.2-cm) slices. Add the syrup to the pineapple and mix well. Refrigerate for up to 24 hours.
Spoon into wine glasses if desired. Sprinkle with mint and serve. |