Gentian Grapefruit Spritz

Build the Spritz

1. Fill a large stemmed wine glass completely to the brim with fresh, dense ice cubes to keep the drink thoroughly chilled and minimize dilution.
2. Pour in the 45ml of non-alcoholic bitter aperitif, followed by 60ml of strained grapefruit juice, 15ml of lemon juice, and 10ml of simple syrup.
3. Top the mixture with 75ml of cold club soda.
4. Insert a bar spoon all the way to the bottom and lift gently once or twice to integrate the ingredients without knocking out the carbonation.

Garnish and Serve

1. Tuck a fresh half-wheel of pink grapefruit down into the side of the glass alongside the ice.
2. Clap a small sprig of rosemary between your palms to release its aromatic oils, then nestle it neatly beside the fruit slice at the top of the glass. Serve immediately.