2 oz. pisco brandy 1 oz. lime juice 1 oz. sugar syrup 1 oz. egg white 2 dashes angostura bitters ½ cup ice Into a cocktail shaker add the brandy, lime juice, sugar syrup, egg white and ice.Shake vigorously to combine the egg white.Strain into a chilled glass and serve, garnished with two dashes of angostura bitters.