Take a cookie sheet and place it on the lower oven rack. This cookie sheet will catch any oil drippings off the pan. (much better then a smokey oven) Place your cast iron on the upper oven rack upside ...
Read more: 8 Baking Sheet Mistakes You Want ... If you don't have a cast iron skillet handy for the next time you're craving a giant cookie, feel free to check your other cookware.