Step 1.
- In a shaker, combine bourbon, fresh lemon juice, cherry liqueur, simple syrup, and egg white.
Step 2.
- Dry shake (without ice) to froth the egg white for about 15 seconds.
Step 3.
- Add ice to the shaker and shake again until well chilled.
Step 4.
- Strain into a chilled coupe glass.
Step 5.
- Garnish with chocolate shavings and a cherry.