Argh, this is the hardest bit, believe it or not. Prepare a baking tray or two with kitchen paper or a silpat.
Preheat the oven to 180C
Slice the logs of dough into slices, crossways, of about 1 cm.
Then using your fingers, gently manipulate the dough disks into a funnel-like cone. Don't worry! You might want to do this in two stages: one to make a flattish disk with a raised ridge around the outer circumference
Secondly, to make the dough into a cone. The idea is that the butter or lard makes the doughy layers slip into the desired shape.
Once you have a cone, stuff with a generous tablespoon of ricotta mixture. Then close each one by pressing the end together with your fingers.
Continue until you have all of the pastries laid out, nicely closed, on your baking trays.
Brush with melted butter. Bake for 20 to 25 minutes.
Remove from the oven, let cool slightly then dust with icing sugar. Your sfogliatelle should be crisp and shell-like.