Heat the oven to 350°F.
Spray a 9x13 pan.
Dump in 2 cans apple pie filling and spread it flat.
Pour 1 pouch oatmeal cookie mix straight from the bag over the top and spread it to the edges. Don’t stir.
Slice 1½ sticks cold butter into thin pats and lay them over the whole top, corners included.
Bake uncovered at 350°F for 45 min, until the top is golden and the apples are bubbling at the sides.
Let it sit 10 min.
Serve warm with vanilla ice cream.
