Pour pie filling into a 9 x 13 dish or pan
Pour cake mix evenly over top of pie filling and press down firmly all over. I used a potato masher for this.
Cut butter into a lot of pieces and place all over the top of the pressed cake mix.
Sprinkle all spice and cinnamon all over the top of the butter and cake mix.
Place into 375℉ oven or smoker and cook until top is golden brown or about 45-60 minutes.
Remove the dump cake from the smoker or oven and serve right away.