This well-known variation on an iconic drink is a go-to every day, especially in the winter to take full use of the magnificent grapefruits that light up the grocery store aisles at that time of year. Instead of using lemon or lime, the grapefruit provides zest and a vibrant citrus finish to the sour mixture.
Start off by simply adding the grapefruit juice, the Talisker 10 Single Malt Whisky, sugar syrup, and mint leaves into a cocktail shaker.
You want to add about 5 ice cubes into the mix and shake well.
Strain the drink into an ice-filled rocks glass
Finish off by adding a grapefruit slice or an orange slice as a garnish.
There are a few more things you can try to add a little something more to your grapefruit whisky sour.
You can make this cocktail just that little more special by adding either St. Germain or Elder Flower Liqueur. The fragrant floral flavour compliments the sweet but tart grapefruit exceptionally well.