If you're new to cooking with cast iron, you might be wondering how to season it. Seasoning is an important part of taking care of your skillet, and it's really easy to do. Simply rub a thin layer of oil all over the inside and outside of the skillet. Then, place it in a 400-degree oven for about an hour. This will help to create a non-stick surface and prevent rust. Once you've seasoned your skillet, it's important to maintain it. Be sure to wash it with hot water and mild soap after each use. Yes, you can use a small amount of soap on the skillet, contrary to popular belief. Then, dry it completely and rub a thin layer of oil on the surface. This will help to keep it seasoned and prevent it from rusting.