Chill your glass: Place a coupe or rocks glass in the freezer for a few minutes. A cold glass helps the drink stay crisp.
Prep your shaker: Add bourbon, cranberry juice, lemon juice, simple syrup, and orange liqueur if using. If you want a foamy top, add the egg white or aquafaba.
Dry shake first: Shake without ice for 10–12 seconds to build a smooth, velvety foam.
Add ice and shake again: Fill the shaker with ice and shake hard for 12–15 seconds.
You’re aiming for a well-chilled, slightly diluted drink with a thick foam.
Strain: Double strain into your chilled coupe or strain over fresh ice in a rocks glass. Double straining keeps the texture silky.
Garnish: Express a lemon or orange peel over the drink to release oils, then place it on the rim or float it. A few cranberries on a pick are a festive touch.
Taste and adjust: If you prefer a slightly sweeter drink, stir in a splash more simple syrup to balance the tartness.