Put the butter in a pan and melt it over low heat.

After it melts, pour it into a larger bowl, in which the dough will be prepared.

Add 4 tablespoons of cocoa over the butter, mix well with a whisk.

Separately beat eggs, add sugar and vanilla.

With a mixer, or whisk, beat the eggs and powdered sugar.

Carefully pour the egg mixture over the cocoa butter, stirring constantly.

Mix well with a whisk until the composition is homogeneous.

Add flour and baking powder, raisins and nuts if you like, mix.

Mix well, not to be lumpy.

Grease a baking tray with butter and place baking paper on the bottom.

Pour the dough into the pan and put it in the oven for 40 minutes.

Try the cake with a toothpick, if no dough crumbs stick, it is baked. Let it cool, without taking it out of the oven, just open its door.

To make it beautiful, I recommend the following trick: cut 2 lines of paper and put them over the cake.

You can put them in whatever shape you want.

Sprinkle powdered sugar with a sieve over the cake.

Pick up the papers carefully and here you have a beautiful and original cake :)

Good appetite!