El pisco sour es un cóctel clásico peruano, preparado con pisco, jugo de limón, jarabe de azúcar, clara de huevo y unas gotas de amargo de angostura. Refrescante y balanceado. The pisco sour is a classic Peruvian cocktail, made with pisco, lemon juice, sugar syrup, egg white, and a few drops of Angostura bitters. Refreshing and balanced.