12 ounces (3 cups) raspberries
2 nectarines or peaches, halved, pitted and sliced thin
2 bottles (750 ml. each) chilled white wine
6 tablespoons orange-flavored liqueur such as Grand Marnier
3 tablespoons sugar, or to taste
1 cup chilled club soda
Arrange raspberries, then nectarines in a large serving bowl and top with wine, liqueur, and sugar. Gently stir to combine.
Keep chilled and covered for at least 4 hours.
Top with club soda before serving. Makes 8 servings.