Check out some of the secret bars in the Argentinian capital and its long tradition of inventing cocktails with inventive ingredients Martn Auzmendi, former bartender, prolific cocktail writer and organiser of Buenos Aires Cocktail Week, looks as if he has a bad taste in his mouth. “It seems like every journalist around the world is saying, ‘I want to make an article about the secret speakeasy bars of Buenos Aires’,” he complains.