Preheat the oven to 350°F (180°C) and line a 9-inch (22 cm) cake pan with parchment paper.
In a bowl, beat the eggs with the sugar until light and fluffy. Gently fold in the flour and cocoa powder.
Melt the butter and stir it into the batter. Pour the batter into the prepared pan and bake for 15-20 minutes. Let it cool completely.
For the cream, melt the dark chocolate and mix it with the whipped heavy cream. Soak the gelatin sheets in cold water, then melt them and add them to the cream.
Cut the sponge cake layer in half horizontally and fill it with the chocolate cream. Smooth the top.
Melt the remaining dark chocolate and spread it in a thin layer over the top of the cake.
Refrigerate the cake for at least 2 hours to allow the cream to set.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.