Get your
cast iron pan ready. Any size from about 9-12 inches will do, but this recipe is for a 10-inch pan, so the cook time may need a slight adjustment if your pan is a little bigger or smaller. (If your pan is well seasoned, it shouldn't need to be buttered to keep your cookie from sticking. If you're concerned about sticking, a very light layer of butter or coconut oil will do the trick.)