Step 1
Using a vegetable peeler, shave 2 long, thin ribbons from cucumber; set aside. Cut a 2 pieces from the remaining cucumber and muddle with a wedge of lime and 2 mint leaves in a cocktail shaker. Add gin and elderflower syrup and fill the shaker with ice. Cover and shake until the outside of the shaker is frosty, about 20 seconds.

Step 2
Strain into ice-filled hi-ball glass. Top off each with gemere. Gently stir to combine; garnish each with the cucumber ribbons and mint.