Pisco Sour

The pisco sour, a whiskey sour variation, was invented by Victor Morris in Lima, Peru, in the early 1900s. He likely used lime juice, but some pisco sours today use lemon while others use both. Shaking first without ice (a.k.a. dry-shaking) emulsifies the egg white and gives the drink an airy texture. Slideshow:  Beautiful Cocktails