Preparation Stir orange juice, Campari and 1/2 cup sugar in medium bowl until sugar dissolves. Transfer to 13 x 9 x 2-inch glass baking dish. Freeze until frozen, at least 6 hours or overnight. Place 6 dessert glasses or Martini glasses in freezer. Mix nectarines and remaining 2 tablespoons sugar in large bowl. Let stand at room temperature at least 30 minutes, or refrigerate up to 2 hours. Using fork, scrape surface of granita to form crystals. Divide granita among frozen glasses. Top with nectarine mixture. Garnish with mint and serve immediately.
Preparation Stir orange juice, Campari and 1/2 cup sugar in medium bowl until sugar dissolves. Transfer to 13 x 9 x 2-inch glass baking dish. Freeze until frozen, at least 6 hours or overnight. Place 6 dessert glasses or Martini glasses in freezer. Mix nectarines and remaining 2 tablespoons sugar in large bowl. Let stand at room temperature at least 30 minutes, or refrigerate up to 2 hours. Using fork, scrape surface of granita to form crystals. Divide granita among frozen glasses. Top with nectarine mixture. Garnish with mint and serve immediately.