Boem tortica :)
Taken from my mom, and she took over from Merala :) crunchy, generous, full of walnuts, almonds, chocolate, creamy and beautiful - Bohemian cake :)

Preparation steps
- Stir the ingredients for the crust in the order indicated, pour into a baking tray lined with baking paper. Bake 3 crusts at about 200C.
- In 200 ml of milk, cook 15 egg yolks, 250 g of powdered sugar (I reduced the amount of sugar to about 100 g, because it will also be in margarine) and 3 tablespoons of flour. Separately whisk the margarine with 200g of powdered sugar and mix with the cooled filling.
- Divide the mass into two parts and add 200g of ground almonds to the 1st part, and 100g of melted chocolate to the other.
- 1st crust, yellow filling, black filling, 2nd crust, yellow filling, black filling ... sprinkle with walnuts.