serves 1
1 ounce gin
1 ounce Campari
1 1/2 ounces fresh grapefruit juice
1/2 ounce fresh lemon juice
1/2 ounce simple syrup
Club soda, to top
Orange or grapefruit slice, for garnish
Add all ingredients except club soda and garnish to a cocktail shaker filled with ice.
Shake for 10–15 seconds until well chilled, then strain into a Collins glass over fresh ice.
Top with club soda and garnish with an orange or grapefruit slice.