Cooking times says 8-12 minutes. I decided to cook them 6 minutes to start off with. When I opened up my oven after 6 minutes a got a face full of smoke and two trays of black kale. Tried again with the second batch for 4 minutes. and that was much closer to being correct. Kale isn't cheap so I'm a little bummed that I wasted half of my money cooking as directed.