To prepare the tiramisu, divide the egg whites from the yolks and add the egg yolks to half of the sugar and mix it with whisk until you get a nice mixture that is light, frothy and creamy.
Add the mascarpone cheese to the mixture of egg yolks.
Mix the egg white with a whisk and when they are not very soft yet, add the other half of the sugar and continue beating until they will not be stiff.
Once the egg whites will be mixed perfectly add them to the mixture of egg yolks, sugar and mascarpone. Do this gently, stirring from the bottom up, with a spoon.
Now that the cream is ready, put a spoon with the mixture on the bottom of each plate. Pass the biscuits in the coffee, being careful to not soak them for too long and then arrange them in the plate by cutting them according to its form.
Place a tablespoon of cream over the ladyfingers, level the cream and cover with another layer of ladyfingers soaked in coffee, if the first were arranged vertically, then place the second ones horizontally (and vice versa).
Level well and sprinkle with cocoa powder. If you want you can sprinkle the top of the plate with some curls of chocolate. Store in the refrigerator for a few hours and then enjoy your Tiramisu.