Preheat the oven to 350 degrees F (175 degrees C). Grease a large baking dish with butter.
Mix brown sugar, vanilla sugar, cinnamon, and nutmeg in a small bowl.
Layer about ⅓ of the apples in the prepared baking dish; sprinkle with ⅓ of the sugar mixture.
Repeat layers twice more.
Bake in preheated oven for 30 minutes. Pour water over apples and continue baking until tender, about 15 minutes more.
