A Coffee Sour is a smooth brandy-based sour that combines coffee liqueur with fresh lemon juice and egg white for a velvety, frothy texture. The drink balances coffee sweetness with bright citrus and a luxurious foam top.
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Shake with ice and strain into sour glass.
cocktail shaker · fine strainer · coupe or sour glass
Yes. Omit the egg white for a thinner drink, or substitute 1/2 oz aquafaba (chickpea liquid) for a vegan foam.
Use pasteurized egg white if you prefer to avoid raw eggs, or purchase pasteurized liquid egg white from the grocery store.
Dry shake (shake without ice first) for 10–15 seconds to build the foam, then add ice and shake again for 10 seconds.
Use Kahlúa, Tia Maria, or another coffee liqueur, adjusting sweetness with less powdered sugar if needed.
Mix the brandy, lemon juice, and sugar ahead of time, but shake with egg white fresh to preserve the foam.
