This monster is essentially a tri-layered pie cake. Known as the Cherpumple, this creation consists of three pies and three cakes made into one giant dessert. The Cherpumple is named in a similar way to the Turducken, in that it contains a cherry, pumpkin and apple pie. If you are trying to choose just one kind of pie to serve at Thanksgiving (how dare you), now you won't have to.
Redditor K_Lobstah introduced the world to this particular pie cake creation. The bottom layer is an apple pie cooked into a cake, the middle a cherry pie also cooked into a cake (probably black forest) and the top layer is pumpkin (again cooked into a layer of cake).