Jason via FlickrThe Pisco Punch at Pisco Latin Lounge: The real deal, for better or worseGuillermo Toro-Lira is pretty much obsessed. It's no coincidence that the Peruvian-born, self-styled "cocktail historian" once wrote a novel about a couple who were (surprise) obsessed with sussing out the original formula for Pisco Punch, the indigenous SF cocktail made with the Peruvian brandy pisco. Three years ago, Toro-Lira traded in life as an electrical engineer in Silicon Valley for what he calls a "