1½ oz Plymouth Gin¾ oz pink grapefruit juice½ oz cinnamon syrup¼ oz Cointreau2 drops absinthe
instructions :

Combine the liquid ingredients in a cocktail shaker filled with ice and shake vigorously.

Double-strain into a rocks glass over ice.

Garnish with the grapefruit twist and grated nutmeg.

source :
Cory Fitzsimmons (New York)