Preheat the oven at 170 degrees Celsius.
Separate the egg yellows and egg whites in 2 different bowls.
In the bowl with the egg yellows, add the sugar and vanilla sugar. Mix with an electrical mixer.
Add the cornstarch, flour and cacao powder and mix gently together.
In the bowl with egg whites mix with an electrical mixer until a firm foam.
Add gently the egg white foam in the bowl with the egg yellow mixture. Fold gently together.
Butter a oven form with removable edges.
Place in the middle if the oven for 30 minutes.
Take out the cake and let it rest in the form for 5 minutes.
Place the cake on a wire rack and let it cool down
Time to make the ganache. Cut the chocolate in pieces. Save 50 gr for later.
In a casserole add the whip cream and heat up, when it starts to boil take it away from the heat.
Add the chocolate and stir until lump free.
Add the butter and mix well. Let it rest until later.
Time to make the whipped cream filling. In a bowl mix with an electrical mixer, when the cream starts to stiffen add the icing sugar.
When the cake is cold cut it in 3 layers.
Open the can with the cherries. Pour it over a zip. Save the syrup.
Place the bottom layer of the cake on a serving plate.
Spread the chocolate ganache on top.
Spread a thin layer of the whipped cream.
Soak the middle and tip layer of the cake in the cherries syrup. Place it on top of the cake.
Spread a layer of the whipped cream.
Place the top layer on it.
Cover the cake with the rest of the filling.
Top it with the cherries.
Grate some chocolate and spread on the edges of the cake.