and set it in the cake batter, face down.
pour the rest of the cake batter over the pie and around the sides of the cake pan. you will not have to use all of the batter; remember, it will rise.
bake according to the package instructions, cool, and carefully remove from the cake pan.
wrap each layer in two layers of plastic and freeze until you're ready to assemble your cake.
layer 1 will be pumpkin pie in spice cake. layer 2 is pecan pie in chocolate cake, and layer 3 is apple pie in spice cake (you can grate in a peeled apple to make it apple spice cake).
i like to make 