This is one sinfully good dessert. Our smooth chocolate cheesecake is topped with a thick layer of gooey fudge, fluffy marshmallows, and crunchy walnuts. And – as if that wasn’t enough – we’ve slow baked it in a cookie crumb crust and drizzled fudge over its entirety. If this wasn’t already a favorite cheesecake, it will be after a single bite.