Pour the batter into the prepared pans and bake for 35 to 40 minutes, until a cake tester comes out clean. Cool in the pans for 30 minutes, then turn them out onto a cooling rack and cool completely.Black ganachePut whipped cream into a stainless steel saucepan and put it on low heat.When its hot, add the chocolate pieces and let it rest for 1 minute, then stir with a whisk until chocolate has melted and becomes shiny and creamy.Allow the ganache to cool in the freezer for approx. 15 minutes.When cool, beat the ganache cream with an electric mixer until it becomes fluffy and pale.White and cream ganache cream ganache for cake dressedFollow the same procedure as for the black ganache cream!If you want, you can make one single black ganache cream, but keep about a quarter for covering the cake.Assembling the cake