Peel, quarter and slice the apples. Squeeze the lemon. Layer the apples in a greased baking dish. Pour the lemon juice over it and let it steep.
In the meantime, grind the almonds (they really taste better freshly ground) and separate the eggs. Beat the egg whites with a little white sugar until stiff and fold in cane sugar, cinnamon, cardamom and almonds. Mix the egg yolks with the vanilla pudding powder, sugar and milk to a creamy, liquid mixture.
Pour the egg yolk mixture over the apples and spread the almond mixture on top.
Bake in the preheated oven at 180 ° C bottom heat for 20 minutes on the middle rack. Then bake for 20 minutes at 150 ° C top / bottom heat.
Serve best with vanilla ice cream or vanilla sauce.