Mascarpone is an Italian cheese that's superrich, delicate and creamy. Here, it's simply blended with confectioners' sugar to create a sublime, snow-white frosting. For the best results, try to buy ...
Preheat the oven to 180C/160C fan/gas 4, and butter a 20cm cake tin at least 5cm deep. Break up the dark chocolate and gently melt this with the butter and sugar in a large bowl set over a pan ...