Cumberbund (Tuxedo variation)

• 2 oz Hans Reisetbauer Blue Gin
• .75 oz Contratto Vermouth Bianco
• .25 oz Roots Mastiha
• 2 dashes Bittermens Hopped Grapefruit bitters
• 2 cucumber slices

Muddle one slice of cucumber in a mixing glass; combine gin, vermouth, mastiha and grapefruit bitters; stir and double-strain up into chilled cocktail glass. Garnish with a cucumber slice.