What Temperature Do You Cook Flat Iron Steak?
Flat Iron steak should be cooked at a temperature of 135°F to 145°F for medium-rare to medium doneness. It is recommended to sear the steak on high heat for 2-3 minutes per side and then finish cooking it on medium heat until it reaches the desired temperature. Resting the steak for 5-10 minutes before slicing will allow the juices to redistribute and result in a more tender and flavorful steak.