Instructions

1. Preheat your oven to 350 degrees.
2. Lightly butter the bottom of your cast iron pan or baking dish.
3. Peel, core, and slice apples and place in a large bowl. (I like to slice my apples fairly thin so that they cook through easily and have enough time to really cook down and get all gooey.) 
4. In your apple bowl, add in the ½ cup granulated sugar, 1 tablespoon flour, and cinnamon, and toss with the apple slices. Transfer to your buttered pan/dish.
5. In the same (now empty) bowl, stir together the quick cook oatmeal, flour, brown sugar, cinnamon, nutmeg, baking soda, and baking powder, top with melted butter, and mix until crumbly. Top the sliced apples evenly with the crumbly oatmeal mixture.
6. Bake for 45 minutes. Allow to cool for about 10-15 minutes; serve warm and top with ice cream or whipped cream.