Using your hands bring the dough together into a ball (again don’t overwork), lightly flour both your rolling pin and work surface then roll out to around 2-2.5cm thick. Using a circular cutter, 6-8cm wide cut your rounds, place on parchment or a non stick baking tray, lightly brush with milk, scatter over remaining Grana Padano and bake for 15-17 minutes, or until they begin to turn a lightly golden.