Smear the cling film with some oil and cover the dough with it. Put in a warm oven, about 50 C (122 F), and let it rise for about 30 minutes or until double in size. If your kitchen is very warm, you can let it rise on your kitchen counter, but it will probably take longer time.
Sprinkle doughnuts with some sugar (granulated or powdered).
*You can find the recipe for Crazy Doug here: https://www.kitchennostalgia.com/bread/crazy-dough-for-everything.html