Butter a 25 cm / 14 cm baking tin and sprinkle with breadcrumbs.
Knead all ingredients. Put half of the dough into the pan. Put the roasted apples on top. Put white chocolate cubes and the second part of the dough on the apples.
Bake in an oven preheated to 180 C for about 45-50 minutes. Pour over the icing. You can decorate with roasted apples