Add the egg white, amaretto, Bourbon, fresh lemon juice, simple syrup and bitters to a cocktail shaker.
Shake vigorously for 15 seconds without ice.
Fill the shaker with ice and continue to shake for an additional 15 seconds.
Strain into a low ball glass or rocks glass.
Thread the lemon twist and maraschino cherries onto a skewer as a garnish. Serve immediately.
Video
Notes
*Note: Egg whites are not recommended to be consumed by infants (but neither is alcohol), pregnant women or the elderly. Swap with aquafaba for a vegan alternative.