Unlike the more well-lit and food-centric Izy, it's all about sultry darkness and cosy corners in Caché. The bar manager, Shinya Koba, is Japanese and moustached, which are virtually automatic proofs of excellence and legitimacy. His Aged Negroni packs a potent wallop of a kick, all musky and confident...yet it goes down with a smoothness superior to a baby seal's buttocks.