Prepare the meringue. Beat three egg whites together with 250 grams of sugar until stiff peaks form.
Draw a circle of the future diameter of the cake on parchment, turn it over and place it on a baking sheet. Put an even layer of meringue in the center of the circle. Bake for 2-2.5 hours at 110-120 °C.
Prepare the sponge cake. Separate 5 egg whites and beat with 5 tablespoons of sugar. Gradually add the yolks. Sift the flour, cocoa and baking powder into the mixture and mix.
Place the dough in a baking dish and place in an oven preheated to 180 ℃ for 25-30 minutes.
Prepare the syrup for soaking the sponge cake. Dissolve 4 tablespoons of sugar in water in a saucepan. Bring to a boil. Let cool.
Soak the biscuit in syrup.
Prepare the cream. Beat room temperature butter with a mixer, add a can of condensed milk. Beat with a mixer until smooth.
For the ganache, pour hot cream over 100 grams of chocolate, stir until smooth and let cool.
Grind the peanuts into coarse crumbs.
Assemble the cake. Soak the cake with syrup, spread with cream and ganache. Sprinkle with peanuts, cover with a meringue cake. Spread the meringue with cream and sprinkle with peanuts again. Trim the edges of the cake with a knife and decorate the cake with nuts and chopped up remains of the cake. If desired, decorate the cake with the rest of the ganache.