Grapefruit juice and fresh rosemary pair up in this refreshing cocktail perfect for a hot summer day.
Muddle two sprigs of rosemary and one slice of grapefruit in a cocktail shaker.
Add the vodkas and juice to the cocktail shaker and shake well. Strain and pour into a rocks glass filled with ice.
Top with club soda and garnish with a rosemary sprig and slice or wedge of grapefruit to serve.