Preheat oven to 375 degrees F. Grease an 8x8 baking dish.
In a medium bowl, mix together all the ingredients for the crumble. Use a fork to cut it until it resembles crumbs, and set aside.
In a large bowl, mix sliced apples, lemon juice, sugars, flour, cinnamon, and pumpkin pie spice.
Fill the baking dish with the apple filling. The apples should be filled to the top almost spilling out.
Evenly sprinkle the crumble topping over the apples and bake for 50 to 55 minutes, until golden brown.
Let stand for 10 minutes to thicken up.
