Flat Iron Steak on the Grill: The Ultimate Guide to Perfect Results

Share the page to

Right, let's talk flat iron steak. It's a cut that's become a bit of a favourite in our household. It's surprisingly affordable, it's got that lovely marbling that makes it so juicy and flavourful, and it's just a joy to cook. It's that kind of cut you can really get stuck into and feel like you've had a proper meal.

Now, I'm no fancy chef, just a bloke who loves his food and enjoys a good grill. But over the years, I've learned a thing or two about cooking this little beauty. I've made my fair share of mistakes, let me tell you! But I've also figured out some pretty reliable ways to get it just right. And that's what I want to share with you today.

(Part 1) The Flat Iron: A Cut That Packs a Punch

Flat Iron Steak on the Grill: The Ultimate Guide to Perfect Results

Why Choose Flat Iron?

You know, a lot of people are a bit wary of flat iron steak. It's not the most well-known cut, and sometimes folks think it's too tough. But honestly, that's just not true. It's all about knowing how to handle it. If you're looking for a tender, flavourful, and affordable steak, this is your guy. The flat iron, often referred to as a "butcher's cut", comes from the shoulder of the cow, a muscle that's been working hard throughout the animal's life. This gives it a distinct, robust flavour that many find deeply satisfying. You get that lovely marbling, which is the intramuscular fat, that makes it juicy and succulent, and the texture is just right - not too chewy, not too soft. Plus, it's often a lot cheaper than those pricier cuts like ribeye or sirloin.

The Anatomy of the Flat Iron

Here's the thing about the flat iron: it's got this bit of a tough, membrane-like part called the "silver skin". This membrane can get a bit chewy if you don't deal with it properly. Luckily, it's super easy to remove. Just give it a good trim with a sharp knife. Think of it like a thin sheet of plastic, just peel it off. No fuss, no muss.

The Flat Iron's Underdog Status

You might be wondering why the flat iron is often overlooked. Well, there’s a bit of history to it. Back in the day, the flat iron was seen as a tougher cut and was often ground into mince. But with the increasing focus on sustainable butchery and the appreciation for unique cuts, the flat iron has experienced a bit of a resurgence. It’s a testament to how a little knowledge and proper cooking techniques can transform a humble cut into a star of the plate.

(Part 2) Setting the Scene for Success: Choosing and Preparing Your Flat Iron

Flat Iron Steak on the Grill: The Ultimate Guide to Perfect Results

Picking the Perfect Flat Iron

Now, when you're at the butcher, you want to look for a flat iron that's got a good amount of marbling. Don't be afraid to ask the butcher for their recommendation. They’ll be able to point you towards the best cuts. The marbling is what's going to make your steak juicy and flavourful. It's like the secret ingredient that elevates the whole thing.

A good butcher will be able to tell you what's on offer and what might be best for your needs. They can also advise you on how much to buy. Don’t feel shy about asking questions, the butcher’s your friend in this game!

Prepping for Perfection

Once you’ve got your flat iron home, there are a few things you want to do to prep it. First, give it a good rinse under cold water. Then, pat it dry with paper towels. This is important for getting a nice sear on the grill. You don’t want to be dealing with a wet steak on the grill, trust me. The water will just steam, making it difficult to achieve that crispy crust we're after.

Now, let's talk about temperature. A lot of people like to bring their steak to room temperature before cooking. It's said to make it cook more evenly. I personally haven’t found a huge difference, but it's something you can experiment with. If you’re going to do it, take it out of the fridge about an hour before grilling. Let it sit on the counter, unwrapped, and get cozy with the room temperature.

A Quick Note on Fat Trimming

As we discussed, the flat iron has that “silver skin” which needs to be removed. But, you may also notice some visible fat along the edges of the steak. If you’re looking for a leaner cut, you can trim some of that fat off. However, keep in mind that fat adds flavour and juiciness, so don't be too aggressive with the trimming. A little bit of fat is a good thing!

(Part 3) Mastering the Grill: Getting that perfect sear

Flat Iron Steak on the Grill: The Ultimate Guide to Perfect Results

Hot and Ready

Alright, time to fire up the grill. Now, here's where things get interesting. You want to get your grill really hot. We're talking high heat, like 500-600 degrees Fahrenheit. A hot grill gives you that beautiful sear, those crispy edges, and a nice crust on your steak. You want those grill marks, and you want them to be deep and crisp. A hot grill sears the outside quickly, locking in those delicious juices and creating a beautiful crust.

The Grill of Choice

Now, you might be wondering, what kind of grill is best? Honestly, it comes down to preference and what you have available. Gas grills heat up quickly and provide consistent heat, which is great for searing. charcoal grills, on the other hand, offer a more smoky flavour, but they take a bit longer to heat up. Whether you’re a charcoal purist or a gas grill devotee, the principle remains the same: heat, heat, heat!

The Art of the Sear

Now, it’s time for the fun part: the searing. You’ve got your hot grill, you’ve got your seasoned steak. What’s next? Just place your flat iron directly over the hot coals or gas flames. Let it cook for about 2-3 minutes on each side. This is going to give you those beautiful sear marks and lock in the juices. Don’t try to move it too much, just let it cook undisturbed for those few minutes. Trust the heat, it’s doing its thing!

The Flip Side: Bringing it Home

Alright, after you’ve seared both sides, you’re going to want to move the flat iron to a cooler part of the grill. This is where you finish cooking it to your desired doneness. If you want it rare, you might only need an additional 2-3 minutes on each side. If you prefer it well done, you’ll be looking at closer to 6-8 minutes. This is where you’re really going to want to keep an eye on your steak. Use that internal temperature guide, the hand method, or just trust your instincts. Every grill is different, so pay attention and adjust accordingly.

(Part 4) Doneness: Knowing Your Steak Inside and Out

Temperature Matters

Now, there’s no one-size-fits-all when it comes to steak doneness. It’s all about personal preference. But if you’re a bit unsure about how to gauge it, there are a couple of ways to get it right. First, you can use a meat thermometer. For rare, you’re looking at 125-130 degrees Fahrenheit. Medium rare, 130-135. Medium, 140-145. And well done, 150-160.

The Hand Method

You can also use the “hand method” to get a sense of doneness. Press the centre of your palm with your thumb. The feel of that is similar to rare. Press your palm with your index finger. That’s similar to medium rare. And if you press with your middle finger, that’s medium. This is just a quick and easy way to get a general sense of doneness, but it’s not always completely accurate. It’s more of a guideline than a precise measurement.

The Look and Feel

You can also get a good sense of doneness by looking at the steak and feeling it. A rare steak will have a bright red centre, while a medium-rare steak will have a pink centre. A medium steak will have a brown centre, and a well-done steak will be completely brown. You can also press the centre of the steak with your finger. A rare steak will be soft, while a well-done steak will be firm.

(Part 5) The Final Touches: Resting and Slicing

A Well-Deserved Rest

Once your flat iron is cooked to your liking, don’t jump straight into slicing it up. Instead, let it rest for about 5-10 minutes. This is really important. The resting period allows the juices to redistribute throughout the steak. This is what makes it super tender and juicy. Imagine it as the steak catching its breath after its grilling adventure, allowing the flavours to settle and mingle.

Slicing with Finesse

After your steak has had a chance to rest, you’re finally ready to slice it up. You want to slice the flat iron against the grain. This means slicing perpendicular to the muscle fibres. This will give you tender, easy-to-chew slices. Avoid slicing it with the grain, because that’s going to leave you with some tough bites. Think of it like slicing a baguette: you wouldn't want to cut it lengthwise, that would be a nightmare! Cutting against the grain ensures you get those tender, melt-in-your-mouth slices.

A Visual Guide to Slicing

Slicing Against the Grain
Slicing With the Grain

(Part 6) Beyond the Basics: Elevate Your Flat Iron Game

Marinade Magic

You can amp up the flavour of your flat iron by marinating it. There are endless possibilities, but some classics include a simple balsamic marinade, a citrusy marinade with orange and lemon, or a garlic and herb marinade. You can also use a store-bought marinade. Just make sure to let your steak marinate for at least 2 hours, or even better, overnight. This allows the flavours to penetrate the meat, making it extra juicy and flavourful.

Here’s a quick marinade recipe you can try:

  1. 1/2 cup olive oil
  2. 1/4 cup balsamic vinegar
  3. 2 cloves garlic, minced
  4. 1 teaspoon dried oregano
  5. 1 teaspoon dried thyme
  6. 1/2 teaspoon salt
  7. 1/4 teaspoon black pepper
Mix all the ingredients together in a bowl, and pour over your steak. Cover and refrigerate for at least 2 hours. Then, grill as usual. You can even leave it overnight for an extra-intense flavour.

Spice It Up

If you want to add a little kick, try adding some chilli flakes or a pinch of cayenne pepper to your rub. You can also go for a smoky flavour with paprika or chipotle powder. Just experiment and see what you enjoy. A good rub can really bring out the flavour of the flat iron.

Here’s a simple and delicious rub recipe:

  1. 1 tablespoon smoked paprika
  2. 1 tablespoon garlic powder
  3. 1 tablespoon onion powder
  4. 1 teaspoon black pepper
  5. 1/2 teaspoon salt
Mix all the ingredients together, and rub it generously onto the flat iron. Let it sit at room temperature for at least 30 minutes before grilling. The flavours will really develop during that time.

Seasoning Secrets

Salt and pepper are the staples of any good steak rub. But don’t be afraid to get creative! You can add other spices like garlic powder, onion powder, or even a bit of sugar. Just remember, a little goes a long way. You want to enhance the flavour of the steak, not overpower it. Experiment with different combinations and find what suits your taste. You'll be surprised by how much flavour you can add to a simple flat iron steak!

(Part 7) The Perfect Accompaniments: Making it a Meal

Sidekicks for a Star

Okay, so you’ve got your perfectly grilled flat iron steak, but what’s a good meal without some sides? I always like to pair it with something fresh and vibrant. A crisp green salad, maybe some roasted vegetables, or a side of mashed potatoes. It’s really up to you and your preferences. If you’re feeling fancy, try some asparagus or grilled corn on the cob. The possibilities are endless.

Don’t Forget the Sauce

And what’s a steak without a sauce? There are tons of sauces that work well with flat iron. You can go for a classic béarnaise sauce, a creamy mushroom sauce, or a tangy chimichurri sauce. If you’re looking for something simpler, you can always make a quick pan sauce with butter, garlic, and herbs. The possibilities are endless! The sauce adds another layer of complexity and flavour to your meal. It's like the cherry on top of a delicious steak sundae.

(Part 8) FAQs: Answering Your Burning Questions

1. How do I tell if a flat iron steak is fresh?

A fresh flat iron steak will have a bright red colour, a firm texture, and a slight smell of beef. It should not have any signs of discoloration or slime. If you're unsure, ask your butcher. They'll be able to guide you on what to look for.

2. How long can I keep a flat iron steak in the fridge?

You can keep a flat iron steak in the fridge for up to 3-5 days. It’s best to wrap it tightly in plastic wrap or put it in a sealed container to prevent freezer burn. Keep it in the coldest part of the fridge, away from any strong-smelling foods.

3. Can I freeze a flat iron steak?

Yes, you can freeze a flat iron steak. It’s best to freeze it for a maximum of 3 months. To freeze, wrap it tightly in plastic wrap and then place it in a freezer-safe bag. When you’re ready to cook it, defrost it in the fridge overnight. Freezing is a great way to preserve your steak, but it can affect the texture a bit. Defrosting it slowly in the fridge will help minimize any loss of moisture.

4. What’s the best way to cook a flat iron steak?

Grilling is a classic way to cook a flat iron steak. But you can also pan-sear it, bake it in the oven, or even cook it in a slow cooker. The key is to cook it over medium-high heat to create a nice sear and then finish it to your desired doneness. Experiment with different cooking methods and find what works best for you.

5. How do I reheat a flat iron steak?

The best way to reheat a flat iron steak is in the oven. Preheat the oven to 350 degrees fahrenheit. Place the steak on a baking sheet and cover it with foil. Heat for about 10-15 minutes, or until it’s heated through. You can also reheat it in a pan over medium heat, but it may become a bit tough. Reheating can be tricky with steak, but these methods help retain the moisture and tenderness.

(Part 9) The Last Word: A culinary adventure

Cooking a flat iron steak can be a real adventure. It’s all about embracing the process, getting to know your grill, and having fun with the different flavours. It’s a cut that’s versatile enough to suit any taste and can be a real showstopper on your table. So, next time you’re looking for a delicious and budget-friendly steak, give the flat iron a go. You might just be surprised by how much you love it. It’s a cut that’s waiting to be discovered and celebrated, so don’t be afraid to give it a try. You might find a new favourite, one that’s both delicious and surprisingly affordable!