Emily ParkerBy Emily Parker

Updated November 2026

Learning how to sear a steak in cast iron skillet comes down to three things: a fully preheated pan, a dry steak, and a short, hot sear that builds a deep brown crust. Done right, you get a steak with a crisp exterior and a rosy, juicy interior in about 10 minutes of active cooking. The method below works for ribeye, strip, sirloin and filet mignon.

Gather Your Tools and Prep the Steak

Cast iron holds heat well, so you need a skillet that is large enough to hold the steak without crowding. A 12-inch pan suits most steaks. Pull the steak from the refrigerator 30 to 45 minutes before cooking so it takes the sear more evenly.

Shopping for one? See our guide: Lodge Cast Iron Skillet Review: Pros and Cons.

  • A 10- to 12-inch cast iron skillet, well seasoned
  • Kosher salt and coarse black pepper
  • High smoke-point oil such as canola, grapeseed or refined avocado
  • Tongs (avoid piercing the meat with a fork)
  • An instant-read thermometer
  • A rack or plate for resting

Pat the steak completely dry with paper towels. Moisture is the main enemy of a good crust, because the pan spends its energy steaming the surface instead of browning it. Season generously with salt and pepper on all sides, at least 40 minutes ahead if you can, so the salt has time to penetrate.

Preheat the Skillet Properly

Place the empty skillet over medium-high heat and let it warm for 5 to 7 minutes. Add the oil and let it shimmer, roughly 2 minutes more. The surface should be very hot but not smoking heavily. A cast iron pan that is not hot enough will stick and release juices, which is the signal you need more preheating time.

Sear the Steak and Control the Heat

Lay the steak away from you so you do not splash hot oil. Leave it alone for 2 to 3 minutes. Resist the urge to move it; the crust forms only when the surface stays in contact with the iron. Flip once with tongs and sear the second side for another 2 to 3 minutes.

For a 1-inch steak, this initial sear usually gives you a good crust on both sides. Thicker cuts, like a 1.5-inch ribeye, may benefit from reducing the heat slightly after the first flip, then finishing in a 400°F oven if the center is still far from your target temperature.

Check for Doneness

Use an instant-read thermometer inserted into the thickest part, away from bone and fat. Pull the steak about 5°F below your target, since carryover heat will continue to raise the temperature during resting.

Doneness Pull Temperature Final Temperature
Medium-rare 125°F 130–135°F
Medium 135°F 140–145°F
Medium-well 145°F 150–155°F

Rest, Slice and Finish the Steak

Transfer the steak to a rack or plate and rest it for 5 to 10 minutes. Resting lets juices redistribute, so they stay in the meat rather than flooding the cutting board. If you like a buttery finish, add a tablespoon of butter, a crushed garlic clove and a sprig of thyme to the pan during the last minute of cooking, and spoon the foaming butter over the steak.

Slice against the grain for a more tender bite. Leftover drippings can become a quick pan sauce, and the same skillet is ready for the next job once it cools. Our guide on How to Clean a Cast Iron Skillet: 5 Steps That Protect the Seasoning explains how to clean it without stripping the seasoning.

Common Mistakes to Avoid

  • Cooking a cold steak: Let it sit at room temperature briefly so the center does not overcook while the crust forms.
  • Crowding the pan: Cook one or two steaks at a time, leaving space between them.
  • Moving the meat too early: Wait until the crust releases naturally from the pan before flipping.
  • Skipping the thermometer: Color alone is an unreliable guide to doneness.
  • Using a poorly seasoned pan: Steak can stick to a pan with weak seasoning. If yours does, see How to Season Cast Iron Skillet: 6 Steps for a Slick, Durable Pan.

A reliable instant-read thermometer takes the guesswork out of doneness and is the single most useful accessory for steak. View on Amazon

Heavy-duty tongs with a locking mechanism let you handle thick steaks without tearing the crust. View on Amazon

A 12-inch cast iron skillet provides enough surface area for two steaks without crowding. View on Amazon

FAQ

Do I need to oil the steak or the pan?

Oil the pan, not the steak. A light coat of high smoke-point oil in a hot skillet helps conduct heat evenly, and the meat’s own fat and surface moisture are enough to prevent sticking once the crust forms.

How hot should the skillet be?

Medium-high is ideal. The oil should shimmer and the pan should feel intensely hot when you hold your hand a few inches above it, but it should not produce thick, continuous smoke.

Can I sear a steak without a thermometer?

You can, but results are less consistent. Touch tests take practice, while an instant-read thermometer gives you a reliable reading in seconds and helps you hit your target doneness every time.

Conclusion

A well-preheated cast iron skillet, a dry and well-seasoned steak, and a timed sear are all you need to get a restaurant-quality crust at home. Pull the steak a few degrees early, rest it properly, and slice against the grain. With practice, you will know your pan and your heat well enough to skip the guesswork.

Ready to choose one?

Emily Parker

About Emily Parker

Emily Parker is part of our editorial team and reviews and edits our cookware & knives guides, checking product details against manufacturer specifications and owner feedback.