Make It
Step 1
Prepare the rosemary syrup by heating water, sugar and rosemary. Stir until sugar is dissolved and cook for 10 minutes over low heat. Filter and let cool.
Step 2
Add 1 1/2 tablespoons of rosemary syrup and grapefruit juice to a shaker; shake. Pour mixture into a glass filled with ice cubes. Top up with PERRIER® Water.
Step 3
Garnish with a sprig of rosemary.