Grilled flat iron steak is tender and delicious with the tastiest Asian marinade. It melts in your mouth! The flavors are divine and it’s so easy to make.
Preheat the grill to medium- high heat, then place the flat iron steak on the grill. Cook for about 4 minutes, turn and cook for another 4 minutes (create grill marks). Lower the heat to low-medium and flip over the flat iron steak and continue cooking until desired doneness (Rare: 120-130 °F, Medium-rare: 130-140 °F, Medium: 140-150 °F, Well-done: 150-165 °F).