Sprinkle flour on the work surface. Place the dough on top and roll out to a thickness of approx. 5 mm. Fold the lower third upwards and the upper third downwards. Then fold the right third to the left and the left third to the right. You should then have a square. Roll it out again 5 mm thick and repeat the folding process. Put folded dough on a plate, cover with saran wrap and refrigerate for at least an hour. TIP: If you do not use it immediately, but only in a few days/weeks, you can freeze it. Put it out of the freezer 1 hour before you want to use it.