A refreshing, alcohol-free drink that balances tart grapefruit juice with fragrant rosemary syrup. Elegant enough for celebrations yet simple enough for everyday sipping.
Make the syrup: In a saucepan, combine water and sugar. Stir over medium heat until dissolved. Add rosemary sprigs, simmer 2 minutes, then steep for 10 minutes. Strain and cool.
Fill a cocktail shaker or jar with ice. Add grapefruit juice and rosemary syrup. Shake until chilled.
Pour into glasses filled with ice.
Top with sparkling water for fizz.
Garnish each glass with a rosemary sprig and a grapefruit wedge. Serve immediately.
Notes
For less sweetness, reduce the syrup to 2 tablespoons.Swap grapefruit for blood orange or pomegranate juice for seasonal variations.Use honey or agave syrup for a natural sweetener option.Freeze rosemary sprigs inside ice cubes for a beautiful garnish that slowly infuses flavor.