Emily ParkerBy Emily Parker

Updated November 2026

To cook a steak in a cast iron skillet, you preheat the pan until it is very hot, sear the seasoned steak for a few minutes per side, and then finish it at a lower heat to reach your target doneness. The result is a dark, crusty exterior and an evenly cooked interior, with the same kind of sear you would get from a restaurant grill. This guide walks through the process so you can cook steak with a cast iron skillet at home without guessing.

What You Need Before You Start

A heavy skillet holds heat far better than thin stainless steel, which is why cast iron is so well suited to searing. Gather these items first:

Shopping for one? See our guide: 7 Best Cast Iron Skillet Pan Sets for Home Cooks (2026).

  • A 10- or 12-inch cast iron skillet, clean and dry
  • A steak about 1 to 1½ inches thick (ribeye, strip, or sirloin all work well)
  • Coarse kosher salt and freshly ground black pepper
  • A high smoke-point oil such as canola, grapeseed, or refined avocado oil
  • Tongs, an instant-read thermometer, and a plate for resting

Step-by-Step: Searing the Steak

Prepare the steak

Pat the steak dry with paper towels and let it sit at room temperature for 30 to 45 minutes. Season both sides generously with salt, about ½ teaspoon per side for a 1-inch steak, plus pepper. Dry surfaces brown faster, and the salt will penetrate further if you season ahead of time.

Heat the skillet properly

Place the skillet over medium-high heat for 4 to 5 minutes until it is very hot. Add a thin film of oil, about 1 teaspoon, and let it shimmer just before the surface begins to smoke. A pan that is not hot enough will steam the meat instead of searing it.

Sear and flip

Lay the steak away from you so the edge is not splashed. Leave it alone for 3 to 4 minutes until a deep brown crust forms, then flip once with tongs. Sear the second side for another 3 to 4 minutes. Avoid pressing down on the meat, since that squeezes out juices.

Finish at a lower heat

For a 1-inch steak, reduce the heat to medium and cook 1 to 3 minutes more per side, depending on how well done you want it. Pull the steak at these internal temperatures, then rest it: 125°F for rare, 135°F for medium-rare, and 145°F for medium. The temperature will rise 5 to 8 degrees while it rests.

Resting and Serving

Move the steak to a plate and rest it for 5 to 10 minutes, loosely tented with foil if you like. Resting lets the juices redistribute, so the first cut does not run across the board. If the pan has browned bits, you can add a tablespoon of butter and a clove of garlic for 30 seconds at the end and spoon it over the meat.

Tips and Common Mistakes

  • Do not crowd the pan. Cook one steak per 10-inch skillet to keep the temperature steady.
  • Avoid cold steak straight from the fridge, which cooks unevenly and browns poorly.
  • Skip the oil if the steak is well marbled; its fat will render into the pan.
  • Use an instant-read thermometer rather than the touch test, which takes practice to read accurately.
  • Ventilate the kitchen. A very hot cast iron pan produces plenty of smoke.

A pair of long-handled tongs gives you control when you flip a hot steak without crowding it. An instant-read thermometer takes the guesswork out of doneness and is the most useful single tool for this method. View on Amazon View on Amazon

For care after cooking, a stiff brush and a bit of oil will keep the pan seasoned. See Cast Iron Skillet Buying Guide for Home Cooks for help choosing a size and weight that suits your stove.

FAQ

Do I need to oil the steak or the pan?

Oil the pan, not the steak. A thin film of high smoke-point oil in the hot skillet prevents sticking, while oiling the meat can cause it to smoke before the sear forms.

How thick should the steak be for a cast iron skillet?

Aim for 1 to 1½ inches. Thinner cuts overcook before they develop a good crust, and very thick cuts may need the oven to finish.

Can I cook a steak on cast iron without a thermometer?

You can, but it is less reliable. A thermometer reading of 135°F for medium-rare is a far more consistent guide than appearance alone.

Conclusion

Cooking a steak in a cast iron skillet comes down to three things: a dry, well-seasoned steak, a pan that is fully preheated, and a patient sear followed by a rest. Master these and you can cook steak with cast iron skillet results every time. Start with a 1-inch ribeye and a thermometer, and adjust the timing to suit your preferred doneness.

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.