For the pyre, grease a baking dish with butter. Preheat the oven to 170 degrees. Mix the milk and apple juice with the eggs. Add 50 g of sugar.
Cut the bread rolls into slices. Pour the milk-apple juice-egg-sugar mixture over the rolls and let them soften well. Peel the apples and cut them into slices as well.
Mix 80 g sugar and the vanilla sugar with the melted butter and add the cinnamon. Empty this mixture over the apples and mix well.
Now in the baking dish successively 1x layer with the buns, on it a layer of apples, again a layer of buns and so on.
With the mass should go out 3 layers each. Put in the oven and bake for 60 minutes. In the meantime, whip the egg whites with the remaining sugar (30 g) until stiff.
Spread this mixture on the pile and put it back in the oven for a few minutes until the whipped egg whites are very lightly browned.