A vibrant twist on the classic whiskey sour, this cocktail blends the warmth of bourbon with the citrusy brightness of blood orange and a silky egg white foam.
Add the whiskey, blood orange juice, lemon juice, simple syrup, and egg white (if using) into a cocktail shaker.
Dry shake (without ice) for about 15 seconds to create foam.
Add ice to the shaker and shake again until well chilled.
Strain the mixture into a rocks glass over a large ice cube or into a coupe glass without ice.
Add 2 dashes of bitters on top of the foam.
Garnish with a blood orange slice or twist.
Notes
Use fresh blood oranges for best color and flavor. Adjust sweetness based on the tartness of the fruit. Egg white is optional but adds a creamy texture. Bourbon offers a smoother base; rye adds spice.