Whisk egg yolks with sugar until light and creamy.
In another bowl, whisk egg whites until stiff peaks form.
Combine mascarpone cheese with egg yolks mixture.
Gently combine egg whites mixture with egg yolks cream with a spatula.
Place the first cake disk on a large cake serving plate. Moisten it with coffee using a pastry brush.
Cover the cake disc with mascarpone cream and level it with a spatula.
Cover with the second cake disc and moisten it with coffee using a pastry brush.
Cover the entire cake with a thick layer of cream.
Level the cake and the sides.
Refrigerate for at least 4 hours.
Sprinkle with cocoa powder and chocolate shavings.
Serve and enjoy.