50g unsalted butter 140g plain digestive biscuits 4 gelatine leaves (I used Supercook), cut into wide strips (or 1 x 11g sachet, see Know-how, below) 400g crème fraîche 100g light muscovado sugar 50g dark muscovado sugar 1 tsp vanilla extract 400g ricotta 50g fudge, finely sliced icing sugar, for dusting Want to see what this recipe costs at different supermarkets?