Preparation:
Combine all ingredients except pineapple wedges in medium metal bowl and stir until sugar dissolves. Transfer sorbet mixture to ice cream maker and process according to manufacturer's instructions. Transfer sorbet to container; cover and freeze unit firm, about 2 hours. (Can be prepared 2 days ahead; keep frozen.)
Freeze 4 Martini glasses for 1 hour. Scoop sorbet into frozen glasses. Garnish with pineapple, if desired, and serve.
Note: If you do not have an ice cream maker, you can turn this mixture into a granita - an Italian frozen dessert. Mix 1/2 cup water into sorbet mixture. Freeze in bowl until semifirm, whisking occasionally, about 3 hours. Cover and freeze until solid, at least 6 hours or overnight. Using fork, scrape surface of granita to form crystals, scoop crystals into frozen glasses and serve immediatel |