Disco Sour

A vibrant, party-ready sour featuring pisco with citrus and bitters, topped with a colorful Angostura foam that dances on your glass.

The Disco Sour is a visual and playful evolution of the Pisco Sour, taking Peru's most internationally recognized cocktail and transforming its presentation through a deliberate bitters technique. The Pisco Sour's own origins trace to Lima's Morris Bar in the 1920s, where American bartender Victor Vaughan Morris created the drink, and the version that became standard was refined by Peruvian bartender Mario Bruiget, who perfected the egg white foam layer and the three-dot bitters garnish that became the cocktail's signature appearance. In the traditional version, a bartender carefully places three drops of Angostura bitters on the white egg white foam after the drink is poured, creating the iconic red-on-white polka dot pattern. The Disco Sour adapts this technique by incorporating the bitters into the egg white before shaking, either by adding them to the dry shake or by combining them with the foam and whipping them together, which turns the entire foam layer pink or amber rather than leaving it white. The resulting drink evokes the saturated colors of the disco era — the 1970s dance club aesthetic of mirror balls, colored light, and maximalist visual energy — while remaining structurally faithful to the original Pisco Sour formula. The technique requires no additional ingredients and changes only the visual presentation, making it a modern bartender's flourish on a classic rather than a substantive recipe alteration.