Reverse Sear a Thick Steak: Oven First, Cast Iron Second

Most people cook steak the old way: hot pan first, then pray. That works fine for thin cuts, but with a thick steak it often leaves a gray band of overcooked meat under the crust and a cooler center. The reverse sear flips the order. You bring the steak up slowly in a low oven, then finish it in a ripping-hot cast iron skillet for a crust. The slow start gives you even doneness, and the quick sear gives you the crust.

It is the easiest way to cook a thick steak with confidence, because you cook to temperature instead of to a timer. This guide covers the cuts that work best, the steps and the mistakes to avoid. If you want to find a local rancher or butcher to buy beef from, agriculture.directory can help you find agriculture events in your area.

Which Steaks Work Best

Reverse searing is best for thick cuts, generally about an inch and a half or thicker. Good candidates include bone-in or boneless ribeyes, strip steaks, porterhouses, T-bones and thick-cut sirloin. Thin steaks cook through before you have time to build a crust, so use a straight hot sear for those. Marbling helps, and cuts from higher-grade beef are more forgiving. The USDA grade standards explain what the Prime, Choice and Select labels mean, and Certified Angus Beef publishes cooking guides for various cuts.

Season Early

Salt the steak generously on all sides, and if you have time, do it at least 45 minutes ahead, or up to a day ahead, leaving the steak uncovered on a rack in the refrigerator. Salt draws moisture to the surface, then dissolves into it and gets reabsorbed, seasoning the meat deeper, while the air dries the surface for better browning. Add coarse black pepper and anything else you like. A dry surface is the secret to a good crust.

Set Up the Oven

Set your oven low, usually somewhere between 225 and 275 degrees Fahrenheit. Put the steak on a wire rack set on a baking sheet so hot air circulates all around it. Insert an oven-safe probe thermometer, or plan to check with an instant-read thermometer often. A thermometer is not optional here. Time varies with thickness, steak temperature and your oven, so cook to temperature.

Know Your Target Temperatures

Pull the steak from the oven about 10 to 15 degrees below your final target, because the sear and the rest will raise it more. Cooks commonly use these final targets, though preferences differ:

• Rare: about 120 to 125 degrees Fahrenheit.
• Medium rare: about 130 to 135.
• Medium: about 140 to 145.
• Medium well and above: 150 and up.

For food safety, USDA recommends cooking whole cuts of beef to 145 degrees Fahrenheit with a three-minute rest, as listed on the safe minimum internal temperature chart. Many cooks eat steak at lower temperatures by preference. That is your decision, and you should know the guidance. Pregnant women, young children, older adults and those with weakened immune systems should follow the USDA recommendations.

Rest Briefly, Then Sear

Take the steak out and let it rest for five to ten minutes while you heat the skillet. This lets the surface dry slightly, which helps the sear. Heat a heavy cast iron skillet over high heat until it is very hot and just starting to smoke. Add a high-smoke-point fat such as refined avocado oil or beef tallow, enough to coat the pan lightly.

The Sear

Lay the steak in the pan away from you to avoid splatter, and leave it alone for about 45 to 60 seconds to build crust. Flip and sear the other side the same time. Use tongs to sear the edges, standing the steak on its side for a few seconds. Many cooks add butter, a crushed garlic clove and herbs for the last 30 seconds, spooning the foaming butter over the steak. Turn on your vent fan and open a window, since this part produces smoke.

The sear should be quick. The steak is already cooked, so long time in the pan will overcook the outside and bring back the gray band you are trying to avoid.

Rest, Then Slice

Rest the steak another five minutes on a board. Slice against the grain, and serve with the pan juices. On a bone-in cut, cut away the bone and slice the meat. A sprinkle of flaky salt on top is a nice finish.

Common Mistakes

• No thermometer. You will overcook or undercook without one.
• Wet steaks. Pat the surface dry before searing.
• Cold pan. The skillet must be very hot.
• Crowding the pan. Sear one or two steaks at a time.
• Skipping the rest. Juice runs out if you cut too soon.
• Using the same temperature for every cut. Adjust for thickness.

Reverse Sear on the Grill

You can do the same thing on a charcoal or gas grill by cooking the steak over indirect heat, with coals on one side or burners off on one side, then moving it to the hot side for the sear. This adds a touch of smoke and avoids the indoor smoke problem.

Buy the Best Beef You Can Afford

Technique matters, but the steak matters more. A local rancher or butcher can tell you about the breed, feeding and aging of the beef. Look for even thickness, good marbling and a fresh color. Handle raw beef safely: keep it refrigerated, wash hands and surfaces and use a clean plate for cooked meat. Farm.fm's page What Is Angus Beef? explains the breed behind many steak labels.