Flat iron steak is a delicious and affordable cut of beef that is gaining popularity in kitchens and restaurants alike. In this article, I will guide you through the steps of how to cook flat iron steak, including cooking methods, and serving suggestions.

1. How To Cook Flat Iron Steak on Grill

Ingredients

  • 1 1/2 pounds flat iron steak
  • 1/4 cup olive oil
  • 1/4 cup soy sauce
  • 2 tablespoons Worcestershire sauce
  • 2 tablespoons balsamic vinegar
  • 2 teaspoons Dijon mustard
  • 2 garlic cloves, minced
  • Salt and black pepper to taste

Instructions

In a bowl, whisk together the olive oil, soy sauce, Worcestershire sauce, balsamic vinegar, Dijon mustard, minced garlic, salt, and black pepper.

Place the flat iron steak in a large resealable plastic bag and pour the marinade over it. Seal the bag and turn it several times to make sure the steak is coated in the marinade. Place the bag in the refrigerator and marinate the steak for at least 2 hours, or overnight.

Preheat your grill to medium-high heat.

Remove the steak from the marinade and discard the marinade.

Place the steak on the grill and cook for about 4-5 minutes on each side, or until it reaches your desired level of doneness.

Use a meat thermometer to check the internal temperature of the steak. The internal temperature of the steak should reach 130-135°F (54-57°C) for medium-rare doneness, 140-145°F (60-63°C) for medium, and 150-155°F (66-68°C) for medium-well.

Remove the steak from the grill and let it rest for about 5 minutes before slicing against the grain and serving.

2. How To Cook Flat Iron Steak in Oven

Ingredients

  • 1 pound flat iron steak
  • Salt and pepper
  • Olive oil
  • 2 cloves garlic, minced
  • 2 sprigs fresh rosemary

Instructions

Preheat your oven to 425°F (218°C).

Season the flat iron steak generously with salt and pepper on both sides.

Place the steak on a baking sheet or in a cast iron skillet.

Drizzle olive oil over the steak, then add the minced garlic and fresh rosemary sprigs.

Roast the steak in the preheated oven for 12-15 minutes or until it reaches your desired level of doneness. The internal temperature of the steak should reach 130-135°F (54-57°C) for medium-rare doneness, 140-145°F (60-63°C) for medium, and 150-155°F (66-68°C) for medium-well. You should use a meat thermometer to check the temperature of the steak. 

Remove the steak from the oven and allow it to rest for 5-10 minutes before slicing and serving.

3. How To Cook Flat Iron Steak on Stove

Ingredients

  • 1 pound flat iron steak
  • Salt and pepper
  • 2 tablespoons olive oil
  • 2 cloves garlic, minced
  • 2 sprigs fresh thyme or rosemary (optional)

Instructions

Take the flat iron steak out of the refrigerator and let it come to room temperature for about 30 minutes.

Season the steak generously with salt and pepper on both sides.

Heat a large skillet over high heat and add the oil. Swirl the oil around to coat the bottom of the skillet.

Add the minced garlic and fresh thyme or rosemary sprigs (if using) to the skillet and cook for about 30 seconds until fragrant. Then add the steak to the skillet and sear it for 2-3 minutes on each side until a crust forms and the steak is browned. To get a good sear, do not move the steak while it cooks on each side.

Use a meat thermometer to check the temperature of the steak. The internal temperature of the steak should reach 130-135°F (54-57°C) for medium-rare doneness, 140-145°F (60-63°C) for medium, and 150-155°F (66-68°C) for medium-well.

Remove the steak from the skillet and let it rest for 5-10 minutes before slicing and serving.

Flat iron steak is a delicious and affordable cut of beef that can be enjoyed in many different ways. By following the guides outlined in this article, you can ensure that your flat iron steak is cooked to perfection and is tender, juicy, and flavorful.

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Julia Jane is a home cook inspired by her mother's cooking. With the desire to share my cooking experiences with everyone, she created this website

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