Special Layered Cake with Cocoa

Description
In Romanian: Tort special cu cacao

Ingredients

 * 8 oz / 250 g sugar
 * 8 oz / 250 g walnuts
 * 5 egg whites
 * rum
 * 10 oz / 300 g whipped cream
 * oil

Filling

 * 8 yolks
 * 8 oz / 250 g confectioner's sugar
 * 8 oz / 250 g butter
 * 2 tablespoons cocoa
 * 2 tablespoons sugar
 * ½ cup water

Directions

 * 1) Caramelize 8 oz / 250 g sugar.
 * 2) When it starts to turn yellow, add the walnuts, letting them roast a little.
 * 3) Remove from heat and spread on a cutting board, previously oiled.
 * 4) When cold, finely crush with a mortar and pestle.
 * 5) Whip the egg whites and mix with the roasted and crushed walnuts.
 * 6) Divide this mixture into 3 equal parts and bake, individually, in baking pans greased with oil and covered with parchment paper.
 * 7) Bake at medium heat until golden.
 * 8) Spread cream on the cooled sheets that were previously sprinkled with rum.
 * 9) Spread cream on the last layer as well.
 * 10) Then cover the whole cake with whipped cream.
 * 11) To get the cream, beat the yolks with the confectioner's sugar until creamy.
 * 12) Mix with the butter, previously creamed separately, then add the following, also previously prepared separately.
 * 13) 2 tablespoons cocoa with 2 tablespoons sugar and ½ cup water are boiled until thickened.
 * 14) Mix everything very well.