1 ½ oz Bolden Vodka
½ oz Giffard Pampelmousse Liqueur
¾ oz Montanaro Bianco Vermouth
8 drops Bittermens Hopped Grapefruit Bitters
Combine all ingredients in a mixing glass filled with ice. Stir to chill & dilute. Strain into a stemmed coupe glass and garnish with a grapefruit swath.