The Pisco Sour is a Peruvian cocktail combining pisco, fresh lime juice, simple syrup, and egg white foam topped with Angostura bitters. The egg white transforms the drink from thin and astringent to silky and complex, creating a palate reminiscent of key lime pie.
Recipe Source
Visit Mr. Boston DrinksFrom Mr. Boston Drinks · by Mr. Boston Official Bartender's Guide
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Shake without ice.
Add ice and shake again.
Strain into chilled
champagne flute or cocktail glass.
Top with bitters.
cocktail shaker · jigger · coupe or champagne glass · bar spoon · strainer
Yes, but the texture and balance suffer significantly. Without egg white, the cocktail is thin on the palate and overly astringent. The egg white foam is what creates the signature silky mouthfeel and depth.
Fresh-squeezed lime juice is essential. For authentic Peruvian flavor, seek out Peruvian key lime juice if available. Avoid lemon juice, which is often a translation error and will throw off the balance.
Use fresh, high-quality eggs from a reliable source. If concerned about food safety, you can use pasteurized egg white products designed for cocktails, which eliminate raw egg risks.
Ensure you're using a full 1/2 oz egg white and shake vigorously with ice for 10-15 seconds to incorporate air. Strain into a coupe glass and the foam should settle on top naturally.
The Peruvian version is more complex with added depth, while the Chilean variation differs slightly. The Peruvian recipe with fresh lime juice and egg white is considered the more sophisticated version.
