Lemon peel is the thin, yellow outer covering of the lemon, which is typically used in cooking and baking to provide characteristic lemon aroma and flavor to dishes without the acidity and extra liquid adding lemon juice would involve. Commercially, lemon peel is mechanically processed to make lemon oil -- there are small glands in the peel that rupture, releasing the oil. 

The aroma of lemon peel is sharp and fresh, with a strong, waxy-lemon-floral aroma, which is mainly limonene, beta-pinene, and gamma-terpinene, with neral and geranial also contributing some scent. In cocktail usage, lemon peel can either be muddled in the bottom of the tin to release oils, or used as a garnish to provide lemon aroma with each sip. 

Lemon peel can be cut into small matchsticks or removed from the lemon with a citrus zester to make lemon zest

Some popular cocktails containing Lemon peel

  • Sea King — Aquavit, Bianco Vermouth, Swedish bitters, Lemon peel
  • Lima Sour — Pisco, Maraschino Liqueur, PInk grapefruit juice, Lime juice, Simple syrup, Lemon peel
  • Devil's Highway — Tequila, Islay Scotch, Suze, Bénédictine, Bitters, Honey syrup, Lemon peel
  • Selinon Soother (OG Version) — Gin, Bianco Vermouth, Jamaican #1 bitters, Seltzer water, Lemon juice, Celery syrup, Simple syrup, Lemon peel
  • Bar Fly — Gin, Parfait Amour, Pineapple juice, Lemon juice, Simple syrup, Lemon peel
  • Van Buren — Citrus vodka, Amaro, Sweet vermouth, Chocolate bitters, Lemon peel
  • Smoke Signals — Amaro, Mezcal, Scotch, Añejo tequila, Lemon peel
  • Arrowhead — Bourbon, Eau de vie of Douglas Fir, Pear liqueur, Bitters, Islay Scotch, Maple syrup, Lemon peel
  • Summer in Manhattan — Rye, Amaro, Dry vermouth, Aromatized wine, Bitters, Lemon peel
  • The Richard Branson! — Rye, Bärenjäger, Bitters, Lemon juice, Maple syrup, Lemon peel