Bringing together tart and sweet, floral and fruity, this refreshing concoction owes its origin to the elderflower liqueur. Perfect for a summer get-together, it's guaranteed to delight.
- 4 ounces fresh grapefruit juice, strained
- 3 ounces St-Germain liqueur
- 2 ounces vodka
- Ice cubes
- 2 grapefruit-rind twists
Mix grapefruit juice, St-Germain, vodka, and ice in a cocktail shaker. Shake and strain into 2 chilled glasses. Top with Prosecco.
Serve each with a grapefruit twist.