Rest for 5 minutes at room temperature on a plate loosely tented with foil. Check the temperature with a thermometer before removing from the oven. Then, flip to the other side and cook for another 5-6 minutes. Cook for 5-6 minutes until a golden-brown crust forms. Once the broiler is heated, place the steaks on a baking sheet and transfer them directly under the broiler. Then, leave them at room temperature for 45 minutes. Start by salting the steaks on both sides. DonenessĬooking flat iron steak to medium-rare keeps it tender and juicy on the inside. Refer to this temperature chart to learn when to remove flat iron steak from the oven (the 2nd column’s temperature range) and what temperature the steak should reach when it’s done resting (the third column). After cooking, your steak needs 5 minutes to rest at room temperature. If you prefer a steak that’s more done in the center, you’ll need another 2-5 minutes to cook flat iron.

Using the high-heat broiler, a medium-rare flat iron steak takes about 10-12 minutes to cook, on average. A few minutes before you’re ready to cook, preheat the broiler to 500 degrees. Spray a rimmed baking sheet lightly with cooking spray. Loosely cover the steaks with foil while they sit. Remove the steaks from the fridge 45 minutes before cooking. This lets the steak rise a bit in temperature to allow it to reach a more even cook from the outside to the inside. The lengthiest part of the preparation process for flat iron steak is leaving it at room temperature before cooking. Your Guide to Cooking Flat Iron Steak in the Oven.Oven Cooking Flat Iron Steak Instructions.

Oven-Cooked Flat Iron Steak Cooking Time.

Broiled flat iron steak