The second time I made these I reduced
the time to 15 min and reduced the temp to 425. They were beautiful. From my 1st try: In the video, she says 425°. In the instructions, she says 450°. I baked mine in the middle of the oven for 20 minutes at 450 and one corner was a little bit burned. So I will definitely try cooking this at 425 next time.
