This innovative whiskey sour recipe takes the classic cocktail to a whole new level. Instead of using traditional lemon juice, this recipe calls for the addition of fresh grapefruit juice, which adds a refreshing and tangy twist. The combination of whiskey, grapefruit juice, simple syrup, and a dash of bitters creates a perfectly balanced and flavorful drink. Garnish with a grapefruit slice and enjoy this modern take on a timeless favorite.
