1 ½ ounce gin, preferably Citadelle
½ ounce Campari
¾ ounce white miso ginger syrup (see Editor’s Note)
¾ ounce acidulated grapefruit juice (see Editor’s Note)
1 ½ ounces tonic water
1 dash saline solution
Garnish: grapefruit half moon
Combine all ingredients, except the tonic water, in a mixing tin and shake with ice. Strain into a Collins glass over ice. Top with tonic water. Garnish with grapefruit half moon.
Editor's Note
Acidulated Grapefruit Juice:
750 milliliters fresh grapefruit juice
12 grams citric acid
7.5 grams malic acid
White Miso Ginger Syrup:
1 ounce Hikari white miso paste
4 ounce ginger, peeled and chopped
16 ounce hot water
24 ounce sugar
Combine the sugar and water together and whisk until the sugar is dissolved to create a simple syrup, then let cool. Once cool, blend the simple syrup with miso paste and ginger. Strain the syrup through a 100-micron filter bag, package, label and date. Keep refrigerated.