There's a reason cast iron skillets have been in kitchens for over two thousand years. They hold heat evenly, they get better with age, and they outlast every nonstick pan ever made by decades.
The thing is, most people have been taught to fear them. "Don't wash it with soap." "You'll ruin the seasoning." "It's high maintenance." None of that's true. A cast iron skillet is one of the most forgiving pieces of cookware you can own, once you understand how it actually works.
What to look for when you buy one
A 12-inch skillet is the sweet spot. Big enough to sear a steak, small enough to make eggs for two. Look for a smooth cooking surface (not pebbled — those are cheaper and food sticks), a helper handle on the front for two-handed lifting, and a weight you can manage one-handed when empty (around 6 to 8 pounds).
Pre-seasoned is fine for most people. Lodge is the American classic. Finex makes gorgeous ones with a stainless steel detail that makes them easier to handle. Smithey makes smoother, lighter pans that are a real pleasure to cook on.
The first month: how to build a great seasoning
Your new skillet came with a thin factory seasoning. It's not nonstick yet, and it won't be for a few weeks. Here's what to do:
- Cook fatty foods first. Bacon, fried eggs, sausage. The fat polymerizes into the iron and builds up the seasoning layer.
- After each cook, rinse with hot water and a stiff brush. No soap yet — your seasoning is still thin and you don't want to strip it.
- Dry it on the burner for a minute, then rub a thin coat of oil over the cooking surface while it's still warm.
- Repeat. After 10 to 15 cooks, the surface will start to feel slick.
Once it's seasoned: how to actually use it
Heat it slowly. Cast iron retains heat so well that cranking the burner to high will burn your food before the pan reaches equilibrium. Medium heat, preheated for 2 to 3 minutes, is plenty for almost everything.
Use more fat than you think you need at first. Butter, bacon grease, avocado oil — the seasoning layer is built from polymerized fat, so you're feeding it every time you cook.
Don't worry about tomatoes. The internet insists you'll ruin your seasoning with acidic foods. You'll mostly just clean it more thoroughly afterward. Acidic foods for short periods are fine.
Cleaning without fear
Yes, you can use a little soap. Modern dish soap is much milder than what your grandmother used. A drop of Dawn in hot water, scrubbed with a stiff brush or chain-mail scrubber, won't strip a properly seasoned pan.
After cleaning, dry it on the burner and rub it with a thin coat of oil. That's the whole ritual. It takes 60 seconds and it keeps the pan good for the rest of your life.
What to do if it rusts
Strip it with steel wool and hot soapy water. Dry it thoroughly. Rub it with oil. Cook with it. It'll come back. Cast iron doesn't break. It's iron. It just might need a fresh start.
The short version
Buy a 12-inch smooth-bottom cast iron skillet. Cook fatty foods for a few weeks. Clean it with hot water and a brush. Dry it. Oil it. Don't worry about anything else. Your grandchildren will fight over it.
Find our 12-inch cast iron skillet here.