Granny smith apples with the tops cut off. Why? So I can hollow them out!
Then, to make them look pretty, add some lattice pie crust.
Bake at 375 for 20 minutes with foil covering the apples. Remove the foil, bake another 20 minutes.
You have apple pies baked inside an apple shell!
Edit to add: Just cut into one and had a bite. OH MY GOODNESS! Sweet from the fuji apple and the sugar and cinnamon, and tart from the granny smith apple. mmmmmm