Cast iron skillets are sturdy and durable. With the right care, they can last you a lifetime. Cast iron cookware is also porous and rough, and can’t be cooked in until it’s been seasoned.
To season your cast iron skillet, clean it by hand in soapy water, pat it dry with a paper towel, and preheat your oven to 350°F (180°C). With a basting brush or another paper towel, coat the bottom and sides of your skillet with a high smoke point cooking oil. Put the pan in the oven and bake for 1 hour, then turn the oven off and let the pan cool. As soon as the pan has cooled down, it’s seasoned and ready to use.
Some authors will tell you to place your cast iron skillet upside down in the oven. If you plan to take them up on the advice, put a baking sheet on your oven’s bottom rack or cover it with aluminum foil, so that there’s something to catch any oil that drips down from it as it’s baking.