2 oz dry gin¼ oz green Chartreuse¾ oz lime juice¼ oz simple syrup (1:1)3 slice cucumber
instructions :

In a shaker, muddle the cucumber with the simple syrup and lime juice.
Add the gin, green Chartreuse and ice.
Shake until chilled, then strain into a rocks glass over fresh ice.
Garnish.

source :
imbibemagazine.com