A:Answer According to my booklet instructions, you can deep fry Donuts. Donuts: cook 2-4 minutes. These foods are best when fried in very small quantities to maintain their individual shapes. Fry approximately 3-4 pieces at a time (according to the booklet instructions.) I hope this will help you. The Deep Fryer does heat up really fast. When you do deep fry your donuts, just watch them.