Cut apples into quarters, peel and cut out the core. Carve the apple quarters lengthwise with a fork and sprinkle with lemon juice. For the dough, mix the fat, sugar and salt with the whisk of the hand mixer until creamy. Add 3 eggs one after the other and mix. Mix flour, baking powder and starch and stir in alternate portions with the milk.
Add Calvados and stir in. Grease the fat pan of the oven (approx. 32 x 36 cm) and smooth down the dough. Separate the remaining eggs. Beat the egg white until stiff. Mix marzipan and egg yolk with the whisk of the hand mixer until smooth. Add sour cream, 100 g flaked almonds and pudding powder and stir in. Fold in the beaten egg white and spread on the dough. Spread apple quarters on top and press lightly. Bake in the preheated oven (electric: 175 °C/ gas: level 2) for 50-55 minutes. Let it cool down.
Fold in the beaten egg white and spread on the dough. Spread apple quarters on top and press lightly. Bake in the preheated oven (electric: 175 °C/ gas: level 2) for 50-55 minutes. Let it cool down. Heat the jam in a pot, pass it through a sieve and spread it on the apples. Roast the remaining flaked almonds in a pan without fat and let them cool down. Sprinkle over the cake and dust with icing sugar