Peel and core the apples, cut into small cubes and drizzle with the lemon juice.
Mix the butter, sugar, vanilla sugar, salt and bitter almond flavor until frothy. Grate the marzipan finely on the household grater, add, stir everything until smooth. Add eggs one at a time, stir well. Mix the flour, cornstarch and baking powder, stir in only briefly. Drain and fold in apples.
Grease a 30 cm loaf pan well and powder with flour. Pour in the dough, smooth it out a little.
Put a fireproof mug with water in the stove. Bake in the preheated oven with convection at 150 ° C, center, for approx. 65 minutes. Cover the last 20 minutes with aluminum foil if necessary. Make a chopstick test.
Preheated electric stove 175 ° C (I haven`t tried it yet).
The cake does not rise above the pan.
After baking, let it cool down in the tin for 10 minutes, only then turn it out onto a wire rack and let it cool down so that the cake becomes very loose. After cooling, place upside down on a cake plate and decorate with powdered sugar.