Tequila Sour

Blanco tequila, fresh lime, and simple syrup — the sour Thomas codified in 1862, distinct from the Margarita in using neutral sweetener rather than orange liqueur.

The Tequila Sour applies the sour template — spirit, citrus acid, sweetener, and optionally egg white — to tequila, producing a cocktail that highlights the agave spirit's natural citrus and vegetal notes in the framework that Jerry Thomas codified in his 1862 Bar-Tenders Guide as one of American bartending's foundational categories. Tequila's specific chemistry makes it a particularly effective sour base: blue Weber agave fermentation produces a range of esters and higher alcohols that carry both citrus-adjacent and earthy aromatic notes, and fresh lime juice's citric acid engages with these compounds to create a drink of genuine complexity. The distinction between a Tequila Sour and a Margarita is primarily structural — the Margarita uses orange liqueur as both sweetener and modifier while the Tequila Sour uses a neutral sweetener alongside the citrus, producing a more spirit-forward result that keeps the tequila's character audible. The egg white's protein foam, when included, extends the aromatic experience by creating a persistent surface through which the lime and agave aromatics are slowly released. Premium blanco tequila from 100% blue agave is the preferred base, as the spirit's quality is fully expressed against the lime and sweetener without the neutral spirit dilution of mixto tequila.