How to Make It
Cook raspberries over medium heat with sugar and water 7–10 minutes or until completely broken down. Press through strainer, discarding seeds. Let cool. Pour about 3 tablespoons (1 quart total) peach nectar and 1 tablespoon raspberry purée into Champagne glasses; add chilled Champagne to fill each (2 bottles total). Garnish each with fresh-raspberry skewer.