grease the donut pan with oil (important – be aware not to miss this step, so that the donuts come out of the pan in a perfect shape!), fill it with the dough and bake the donuts at 180°C/350°F in a preheated oven for 20 – 25 minutes. To check if the donuts are ready, insert a wooden stick in them – if it comes out clean, the donuts are ready, if not, bake them for some extra minutes;