Core apples. Throw out core.
Scoop out inside of apple. Save apple pieces.
Combine brown sugar, melted butter, apple pieces and crumbled oatmeal cookies.
Stuff into apples. Press down. Some of the butter/sugar mixture will come out.
Bake at 350 for 25 to 30 minutes.
Move apples to serving platter and pour caramel from dish over them.