Make It Yourself
Bruise or crumple 1 fresh mint sprig in a cocktail shaker to release flavor. Add 3 Tbsp. gin (such as Bristow); let stand 2 minutes. Discard mint. Add 4 1/2 tsp. fresh lemon juice, 4 1/2 tsp. simple syrup, and 6 dashes of cucumber bitters (such as El Guapo). Fill shaker with ice cubes. Cover with lid, and shake vigorously until thoroughly chilled (about 30 seconds). Strain into a 10-oz. glass, and top with dry Champagne. Garnish with a mint sprig or cucumber slices.
MAKES 1 SERVING