This Limoncello Sour brings lively, citrusy flavor and a silky texture to the classic sour cocktail. Bright limoncello, fresh lemon, and a hint of sweetness are balanced by creamy egg white foam. Crisp, smooth, and refreshing!
Pour limoncello, lemon juice, simple syrup, and egg white into the cocktail shaker.
Shake without ice for about 10 seconds to build up foam (dry shake).
Add ice and shake again for 15–20 seconds until well-chilled and frothy.
Strain into a rocks glass filled with ice.
Top with a few drops of bitters if desired and garnish with a lemon slice or twist.
Notes
Homemade limoncello gives extra brightness, but store-bought is great too. Skip the egg white for a lighter drink (no foam). Add a splash of soda for a fizzier version. Taste before serving and adjust sweetness or tartness to your liking.