Roll the dough to ½ in/1 cm using either a sheeter or a rolling pin. Let the dough relax for 30 minutes in the refrigerator.
Using a 3½-in/9-cm doughnut cutter dipped in flour, cut out as many doughnuts as possible and place them on a sheet pan lined with parchment paper. For square doughnuts, use a 3-in/8cm cutter.