1. After the first rise, punch down the risen dough and pull it from the bowl onto a lightly floured work surface. If the dough has come from the fridge, it will be very stiff. You can let it warm up to room temperature for 10 minutes first before shaping.
2. Using a rolling pin, roll the dough into a ½ inch / 1.3cm thick shape. Use a doughnut cutter or a glass to cut out the doughnuts
3. Place the shaped doughnuts on parchment paper. Use kitchen scissors to cut around each so that each doughnut is sitting on an individual piece of parchment. The doughnuts can now be transported into the oil on parchment paper, which makes transferring them easier. If you don't have parchment paper, you can transfer the dougnuts without it.
4. Any remaining dough can be rolled out and cut again, but let it rest for 10 minutes to rest the gluten and stop the dough from springing back.
5. Gently cover and leave the doughnuts to rise slightly for around an hour until doubled in size. This timing is dependent on room temperature – the warmer the room, the faster they’ll rise.
6. When they have risen, pour the frying oil into a deep fryer or pot and heat it to 356°F/180°C. The oil in the pan should be at least 3 inches deep.
7. When the oil is hot, fry the doughnuts in it for 2-3 minutes, around 60-90 seconds per side. Use metal tongs to remove the pieces of parchment paper from the oil. It will be much less time for the smaller donut holes.
8. Don't add too many at a time because they will lower the oil temperature. If it drops too much your donuts won't fry well and will absorb too much oil. Don't let the temperature surpass 375°F / 190C.
9. After frying, use a slotted spoon to remove the doughnuts from the oil, then place them on paper towels to drain.