Method
- Fill a rocks glass with ice cubes.
- In a shaker, combine 25 ml quail egg white, 30 ml lemon juice, 15 ml sugar syrup, and 50 ml whisky.
- Add 2 dashes of grapefruit bitters to the shaker.
- Fill the shaker with ice cubes and shake thoroughly.
- Strain into the rocks glass.
- Garnish with an orange slice.
About the Grapefruit Whisky Sour
A sour cocktail made with whisky, citrus juices, and egg white. The grapefruit bitters add a citrusy twist to this classic whisky sour.