Grease a drip pan (approx. 339 cm, at least 3.5 cm deep) and dust with flour.
Peel, quarter and core apples and cut lengthways into wedges. Immediately drizzle with lemon juice.
Mix the flour, 375 g sugar and salt. Add 3 egg yolks and butter in flakes. First work with the dough hook of the hand mixer and then briefly with your hands into sprinkles.
Spread about 2/3 of the crumble on the bottom of the drip pan and press down as a base. Place the apple wedges close together.
Beat the cream, 5 eggs, 125 g sugar and vanilla sugar for about 1 minute until frothy. Pour over the apples. Spread the remaining sprinkles on top.
Bake in a preheated oven (electric oven: 200 ° C, convection: 175 ° C, gas: level 3) for about 50 minutes. Let cool down. Dust with powdered sugar.