Make a sponge mixture from 250 g flour, 150 g sugar, 125 g butter and 1 egg. Put this in a greased springform pan and smooth it out.
For the topping, peel, core and dice the apples, mix with lemon juice and spread on the batter.
Whip 1 cup of cream until stiff. Make another sponge mixture from 150 g butter, 125 g sugar, 1 egg, 1/2 packet of lemon peel and 100 g flour. Fold in the cream and then spread everything evenly on the apples. Pour the sliced almonds on top and sprinkle with the sugar.
Bake in the preheated oven at 175 ° C top / bottom heat for about 1 hour.