When you make this the first time, watch your oven carefully. I thought this would only need to bake for 45 minutes, but as I continued to check for the perfect crunchy edges, I found that my oven required almost 70 minutes of baking time. My advice is to start by setting your oven for 50 minutes and check it. If they are not crispy enough, put it back for another 5-7 minutes and check it again.