The subtle lemon flavor of thyme pairs well with the tart grapefruit.
- 1 1/2 cups water
- 1 cup sugar
- 1/2 bunch fresh thyme, plus more for garnish
- 2 tablespoons black peppercorns, crushed
- 4 grapefruits, juiced
- 2 cups vodka
- Club soda
- Freshly ground black pepper, for garnish (optional)
Combine the sugar and water in a small saucepan and heat to dissolve the sugar. Remove from the heat. Add the thyme and peppercorns. Let steep for one hour. Strain and chill, reserving a few thyme sprigs for garnish.
Mix grapefruit juice and vodka in a pitcher. (Chill if making ahead.) To serve, fill each 8-ounce glass with 1 tablespoon thyme syrup, add ice to fill the glass, and fill 3/4 of the way full with the grapefruit mixture. Top with club soda. Garnish with 1 sprig of fresh thyme and some cracked black pepper if desired.