Flat Iron Steak Recipe with Blue Cheese Butter 🥩

Try this simple Flat Iron Steak Recipe for a tasty steak dinner. There’s no need for complex grilling – a quick pan-sear with peppercorns does the trick. And for an extra flavor, we have paired it with low-carb cheese butter. Let’s dig in!

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Preparation and cooking overview

Making this steak is very simple! Just season the steak with coarse peppercorn and sear until golden brown. For an added touch, use blue cheese, butter, and aromatic herbs to prepare some blue cheese butter. In under 30 minutes, enjoy a perfectly cooked steak that’s both flavorful and satisfying.

Chef’s note

For more flavorful steaks, marinate them with a blend of vinegar, olive oil, lemon juice, Worcestershire sauce, black pepper, and salt. Allow them to rest in the fridge for at least an hour or two before cooking.

Interested in more beef recipes? Browse our other beef recipes and find more dishes to love.

Prep Time: 10 minutes
Cooking Time: 12 minutes
Total Time: 22 Minutes
Difficulty Level: Easy
Recipe Makes 2 Servings

🥩 Ingredients for flat iron steak recipe

You’ll need these simple ingredients to prepare flat iron steak in a low-carb way:

2 (7-ounce) flat iron steaks
1 tablespoon coarsely ground or crushed peppercorns
1 tablespoon bacon grease

For the blue cheese compound butter

4 ounces salted butter, soft
2 ounces of crumbled blue cheese
1 tablespoon minced parsley
2 teaspoons minced shallot

All the ingredients required to make flat iron steak gathered and arranged on the table.

Ingredient substitutions

Considering alternatives for the ingredients? Here are some substitutions to try:

Bacon grease: If you can’t find bacon grease, a tablespoon of olive oil will do the trick.
Salted butter: Opt for unsalted butter and just sprinkle in a pinch of salt to get the right flavor.
Parsley: Fresh herbs such as cilantro or basil make great replacements for parsley, in case you’re not a fan.

Additional ingredients

Enhance the flavor of your steak with these keto-friendly additions:

Garlic powder: Sprinkle a bit of garlic powder on the steak before searing to add an extra layer of flavor. Alternatively, you can use fresh garlic cloves for a bolder flavor.
Red chili flakes: If you like a hint of spice, scatter some chili flakes onto the steak at the last minute of cooking. Alternatively, mix them into the blue cheese compound butter.
Grated Parmesan cheese: Mix freshly grated Parmesan cheese into the blue cheese butter for a cheesier experience and more delicious flavor.
Fresh rosemary: Toss a sprig into the skillet during cooking for an amazing steak experience!
Lime juice: Squeeze some fresh lime juice and sprinkle over the cooked dish for a tangy twist.

A focused shot of flat iron steak with herb butter and fresh greens.

Cooking tools required

To make this flat iron steak recipe, you’ll need the following tools:

Measuring spoons
Mixing bowl
Fork
Paper towel
Cast-iron skillet
Wax paper
Aluminum foil

Tool substitutes list

Waxed paper: Roll the cream butter on parchment paper if you don’t have waxed paper.
Cast-iron skillet: Instead of a cast-iron skillet, use a regular non-stick pan to sear the steaks.

How to make Flat Iron Steak: step-by-step guide

Cooking methods

Pan-searing

Preparation steps

Gather and measure all the ingredients.
Mince the parsley and shallot.
Grind the peppercorns to a coarse texture. You can use a coffee grinder or a mortar and pestle.
Remove the steaks from the fridge 20-30 minutes before cooking.

Cooking steps

Prepare the blue cheese compound butter

Place 4 ounces of salted butter in a small mixing bowl and mash it with a fork until smooth.
Stir in the crumbled blue cheese, minced shallot, and parsley.
Scoop the compound butter onto waxed paper, centering it lengthwise.
Roll the mixture into a log, twist the ends, and refrigerate.

Cook the steaks

Place a cast-iron skillet over medium heat.
While it’s heating, pat the steaks dry with a paper towel. Rub a little olive oil over all surfaces and season with salt.
Spread the coarsely ground peppercorn onto a plate and press the steaks onto it, coating all sides.
Next, add bacon grease to the hot skillet and give it a swirl.
Place in the seasoned steaks and cook for 5-7 minutes per side. For medium rare, aim for an internal temperature of 135°F (60°C) and 145°F (65°C) for medium.
After cooking, transfer the steaks to a plate, covering them lightly with foil for about 15 minutes. To finish, garnish with a slice of compound butter and serve.

Chef’s pro tip

To avoid overcooking the steaks, rely more on the internal temperature than the cooking time. Since cooking times vary depending on the thickness of your steaks, insert a digital meat thermometer into the thickest part of the steak and aim for these temperatures:

Doneness Level	Description	Fahrenheit (°F)	Celsius (°C)
Rare	Cool red center	125°F	52°C
Medium Rare	Warm red center	135°F	57°C
Medium	Warm pink center	145°F	63°C
Medium Well	Slightly pink center	150°F	66°C
Well Done	Little or no pink	160°F	71°C

What to serve with flat iron steak?

The pan-seared flat iron steak pairs well with a number of side dishes. Here are some ideas to get you inspired:

Cauliflower Mash: A creamy cauliflower mash is the best side dish for steak recipes. It pairs nicely with the savory meat and butter.
Grilled Asparagus: For a perfect flank steak dinner, serve with grilled asparagus. You can also try a medley of Grilled Vegetables.
Kale Salad: The fresh, crisp kale brings a delightful crunch to the rich and hearty steak, creating a satisfying and well-rounded meal.
Creamed Spinach: Pair the juicy steaks with a side of creamed spinach. Your taste buds will thank you!

Low-carb flat iron steak with a generous dollop of herb butter and a side of greens.

How to make it healthier?

Opt for unsalted butter and season the steaks with less salt.
Use slightly less butter for the compound to reduce the saturated fat content. You can also trim any excess fat from your steaks.

Time-saving tips

Several gourmet stores offer pre-made compound butter. Buy a keto-friendly option to save on preparation time.
Opt for pre-crushed peppercorns instead of crushing them yourself.

Homemade flat iron steak topped with herb butter and served alongside fresh greens on a plate.

What can I prepare ahead of time?

Prepare the blue cheese compound butter several days early; it’ll stay fresh in the fridge for about a week.
Season the steaks with salt and peppercorns the previous night, then store them in the refrigerator. This step quickens the cooking process and deepens the fabulous flavor profile.

Storage and reheating instructions

Storage instructions

Let the leftover steaks cool down to room temperature. Then, transfer them to an airtight container and store them in the fridge. They’ll stay fresh for 2-3 days.

Best reheating practices

Stovetop: Heat a skillet over medium-low heat and add 1-2 teaspoons of olive oil. Once the oil is hot, place in the leftover steaks and heat for 3-4 minutes per side.
Oven: Preheat your oven to 350°F (180°C). Place the remaining steak on a baking sheet and heat for 10-15 minutes or until warmed.

A plate showcasing flat iron steak with herb butter and side of fresh greens.

Recipe wrap-up conclusion

Do you think a hearty meal is too much effort? Give this Flat Iron Steak Recipe a shot. You can craft a restaurant-quality dinner in under 30 minutes with basic instructions, simple ingredients, and a single pan. Plus, cleanup is a breeze.

So, don’t hesitate! Discover today how a peppercorn crust combined with cheese butter can elevate your steak experience.

Craving more beef dishes? We’ve got plenty! Check out these mouth-watering keto beef recipes:

Frequently asked questions

Absolutely! Flat iron steak is low in carbs and high in protein, making it an excellent choice for those following a keto diet.

Pan-searing is the best method for cooking flat iron steak. Its tenderness and marbling make it perfect for a crispy outside and juicy inside.

Yes, flat iron steak is considered one of the most tender cuts of beef, second only to the tenderloin.

Flat iron steak is a cut from the shoulder of the cow, specifically from the top blade roast of the beef chuck.

Flat iron steak can be grilled, broiled, or pan-seared. It’s great for steaks, salads, sandwiches, and even fajitas.

📖 Recipe

Flat iron steak topped with herb butter served on a plate with greens.

Flat Iron Steak Recipe

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This Flat Iron Steak Recipe features pan-seared steaks with a coarse peppercorn crust and a delectable blue cheese compound butter, providing a flavorful low-carb dinner in under 30 minutes.

Course dinner, Main Course

Cuisine American

Keyword 30-minute, baked beef ribs, beef steak, flat iron steak recipe, keto steak dinner

Prep Time 10

Cook Time 12

Total Time 22

Servings

Calories 759kcal