Egg White

The silky-foam ingredient of a classic sour.

Dairy & Eggs
Flavor profile: creamy

Egg white is the protein that produces the signature foam cap on a Whiskey Sour, Pisco Sour, and other classic sours. A dry shake (without ice) emulsifies the proteins; a second shake with ice chills and dilutes. The result is a glossy, silky cap that holds a bitters-and-toothpick design. Some bars substitute aquafaba (chickpea brine) for vegan sours with similar results.

Common uses

Whiskey Sour, Pisco Sour, Clover Club.

Cocktails that use Egg White

  • Whiskey Sour — Bourbon meets lemon juice and simple syrup for a silky, frothy sour
  • Pisco Sour — Pisco, lime, syrup, and egg white topped with Angostura bitters — Peru's national drink