In Zen Buddhism, the 77th case of the Blue Cliff Record is cake.  A monk asked Yunmen, “What is talk that goes beyond buddhas and patriarchs?”  Yunmen said, “Cake.”  He makes us think of cake, imagining it’s sweetness, texture and satisfaction, a strange ghost that can be raised with a single word, somewhat like the ghosts of ancestors.  The thought of a cake is both a cake and not a cake, much as a rock is sometimes a rock and sometimes the thought of a rock, and thus not a rock.  Whether or not this has anything to do with the buddhas and patriarchs, it certainly has to do with cake.