Every cheesecake maker needs one marble one in their repertoire and this is mine. Cheesecakes were the mainstay of my cake business when I was a wholesale baker. This one is an institution. A dramatic version of a chocolate marble cheesecake. Bittersweet chocolate swirling throughout with a glossy fudge glaze. Make sure the milk chocolate you use for the cake batter is of excellent quality. For an all-chocolate cheesecake, tint the batter throughout with melted chocolate, instead of marbleizing it.