Ingredients:
Ice, for serving
6 ounceschilled white wine, like pinot grigio or sauvignon blanc
1 1/2 ouncesclub soda or seltzer
small grapefruit, halved and sliced into ¼-inch-thick half moons, for garnish
Directions:
Fill two wine or balloon glasses ¾ of the way up with ice. Add the wine and seltzer. Stir to combine. Garnish with the grapefruit slices and serve.