Chocolate Custard Cake

"Chocolate custard cake, the recipe for which I will tell you in detail today, is a surprisingly tasty combination of air chocolate layers made of sponge on egg whites and a delicate custard cream. To make dessert even tastier, add fried walnuts to the sponge layers. They will make the taste of the chocolate cake with custard filling even more saturated and bright. In addition to nuts, dried fruits can be used to layer the cake, prunes or dried apricots are best suited."