Preheat your oven to 350°F (180°C). Grease and flour a cake pan.
Cream together the butter and sugar until light and fluffy. Beat in the eggs one at a time.
Whisk together the flour and baking powder, then gradually add to the wet ingredients, mixing until just combined.
Pour the batter into the prepared cake pan and bake for 20-25 minutes, or until a wooden skewer inserted into the center comes out clean. Let cool completely.
For the chestnut mousse, combine the chestnut puree, heavy cream, and vanilla extract in a bowl. Beat with an electric mixer until light and fluffy.
Dissolve the gelatin in a little warm water. Gently fold the dissolved gelatin into the chestnut mousse until well combined.
Spread the chestnut mousse evenly over the cooled cake layer. Refrigerate for at least 3 hours to set.
Garnish the top of the cake with grated dark chocolate, whipped cream, or pieces of chestnut puree.
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.