Mezcal Sour

A silky, smoky take on the classic sour that lets mezcal shine through a cloud of frothy egg white and bright citrus.

The Mezcal Sour emerged from the same shift in American cocktail culture that brought mezcal from a specialty import to a mainstream bar staple. Mezcal has been produced in Oaxaca and neighboring Mexican states for over four centuries — the first commercial production licenses were granted in the 17th century, though agave distillation by indigenous producers predates Spanish colonialism — and it remained largely unknown outside Mexico until the early 2000s. The craft cocktail movement's rediscovery of mezcal coincided with the growth of the sour cocktail category, which traces its roots to at least 1856 when the Wisconsin Dairy Press published an early sour recipe. The Whiskey Sour was first documented by name in 1870 in a Waukesha, Wisconsin newspaper and standardized by bartenders including Jerry Thomas. The sour template — spirit, citrus, sweetener, and optional egg white for texture — is structurally sound precisely because it forces the base spirit to negotiate with acid, which strips out off-notes and emphasizes clean, honest flavor. Mezcal's smoky, roasted agave character creates a distinctly more complex sour than whiskey or vodka: the citrus cuts through the smoke without eliminating it, the egg white foam carries the spirit's aromatics on every sip, and the sweetener — agave nectar, when used — harmonizes with the spirit's inherent rawness. The result demonstrates that mezcal's intensity needs no masking, only context.