Cocktails in these heady days are complex magic tricks, summoned from the ether by the showstoppers known as bartenders. But just as there's a difference between a Houdini and the clown at kiddie parties, there's a huge gulf in skill behind all the smoke and mirrors fluffing up craft cocktails around town. That's why the cocktails at Bar Centro are so satisfying. True, they're gorgeous, and there's a fair share of showmanship with liquid nitrogen and props. But the cleverest of cocktails has to be well rounded and delicious. Which is where José Andrés comes in. He's a master at making food that's both whimsical and delicious, and his chef-meets-Cirque du Soleil sensibilities translate to the cocktail menu. Here, a margarita ($16) is kissed by "salt air" (a bit of sea foam floating in the glass substitutes for a salt rim, giving you a more nuanced bit of salt in every sip); a dirty martini ($16) is graced with an olive spherification that bursts briny juice into your mouth when firmly pressed between your teeth; and a caipirinha ($16) is turned into a potent brain-freeze-inducing lime granita when mixed with liquid nitrogen. Each sip? Magical.