The Pisco Sour is made with bitters, sugar, lime juice, egg whites & Pisco, this pale grape spirit
[DOC] [TLE] Pisco Sour - Authentic Peruvian Recipe | 196 flavors [PAR] Jul 31, 2016 ... Pisco sour is a traditional Peruvian cocktail based on pisco, lime juice, syrup that 
is topped with a frothy egg white foam and ... bitters.