Russia has gone to great lengths to distract us from their socio-political policies during these Olympic Games, by instead, insistently underlining their eminence as a nexus of art and culture. So if you’re going to get swept away by Dostoyevsky, Tchaikovsky and those adorable nesting dolls, why not give equal due to foods like borscht and pickled herring? No? Vodka? Bingo. Time to celebrate Sochi-style at Brooklyn’s best Russian restaurants.