1 vanilla sugar
* Peel apples, and cut them as lil cubs. Put the apples in the cake pan.
* In a bowl, mix sugar and butter together. Then add flour. The paste must look like a kind of 'powder'.
* Add some vanilla sugar on the apples, put the crumble on the apples and then bake it for 20/30 minutes in oven 350°F/180°C.