This spectacular cake is truly what dreams are made of. Deep-dark chocolate cake, caramel-fudge filling, caramel buttercream frosting, and a final layer of chocolate ganache poured over the top take this cake to new levels of decadence. If youre looking for a special-occasion dessert youve certainly found it. Note: to simplify the process, the cake, soaking syrup, and ganache can all be made a day in advance and stored until youre ready to assemble the cake.