Peel, quarter and core the apples. Cut the apple quarters several times lengthwise on the curved side or carve them with a fork. Sprinkle with lemon juice
Grease a grease pan (approx. 32 x 39 cm). Mix fat, sugar and salt until creamy. Stir in 3 eggs individually. Mix flour, starch and baking powder and stir in alternately with milk and calvados. Spread the dough on the fat pan
Dice marzipan. Separate two eggs. Beat 2 egg whites until stiff. Mix marzipan and 2 egg yolks with the whisk of the hand mixer until smooth. Stir in sour cream and pudding powder. fold in the beaten egg whites and 100 g almonds
Spread the marzipan sour cream on the dough. Place the apple quarters on top with the curvature upwards. Press on a little. Bake in the preheated oven (electric oven: 175 °C/recirculating air: 150 °C/ gas: level 2) for 50-55 minutes. Let them cool down
Roast 50 g almonds without fat. Heat the jam, pass it through a sieve and spread it on the apples. Sprinkle the cake with roasted almonds and dust with icing sugar