5 cucumber slices
1/2 ounce simple syrup
2 ounces gin
3/4 ounce lime juice
Splash ginger beer
Rosemary sprig, for garnish
Special equipment: iced highball glass
Muddle 4 of the cucumber slices with the simple syrup. Add the gin and lime juice, and shake vigorously over ice. Strain into an iced highball glass. Top with a splash of ginger beer.
Spear the remaining cucumber slice with the sprig of rosemary to garnish the glass.