 In Mexico , singer @-@ songwriter Aleks Syntek controversially posted on Twitter that the pisco sour is Chilean . After receiving critical responses to his statement , Syntek apologized and mentioned he was only joking . Mexican television host and comedian Adal Ramones also joked about pisco sour , in reference to the 2009 Chile – Peru espionage scandal , on November 17 , 2009 . Ramones , a fan of Peruvian Pisco , when asked about the espionage , asked what Chileans were spying on in Peru , suggesting it might be how to make a pisco sour ( in Spanish : " ¿ Qué quieren espiar los chilenos ? ¿ Cómo hacer pisco sour ? " ) . 
