Step 1.
- In a shaker, combine 2 oz of Bourbon, 3/4 oz of fresh lemon juice, and 1/2 oz of simple syrup.
Step 2.
- Add 1 egg white to the shaker for frothiness.
Step 3.
- Dry shake (without ice) for 15 seconds to emulsify the egg white.
Step 4.
- Add ice and shake vigorously for another 15 seconds.
Step 5.
- Strain into a rocks glass filled with ice.
Step 6.
- Garnish with a lemon twist.