Homonym: sours (Fermentation)
Sours are a category of cocktails known for their tart and tangy flavor, typically made with a base spirit, citrus juice, and a sweetener. The most common base spirits used in sours include whiskey, rum, and vodka. The addition of citrus, such as lemon or lime juice, provides the signature sour taste, while sweeteners like simple syrup balance the acidity.
One of the most famous examples of a sour cocktail is the Whiskey Sour, which combines bourbon, lemon juice, and sugar. Sours can be served shaken or blended, and they often feature a frothy texture when egg whites are included, enhancing the drink's richness and mouthfeel.