This recipe is my own but at the same time a conflation of a couple of Italian Christmas must-haves: the glorious, fruit-studded panettone and crema di mascarpone, which is best described as tiramisu without the Savoiardi biscuit layer, and sometimes with pieces of chocolate stirred through the mascarpone mixture. I have brought in a cassata element, which means I add, along with the chocolate, some crumbled marrons glaces (though any candied or dried fruits could do) and chopped pistachios…
