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Guinness Marinated Flat Iron Steak

October 18, 2021

Prep Time

1 hr

Grill Time

10 mins

Total Time

1 hr 10 mins

Categories

Flat Iron steak is my go to cut for a quick and inexpensive dinner. These steaks typically run about 5.99/lb at the grocery store so for around $12 you’ll have a steak that can feed 3-4 people easily. The flat iron is cut from the chuck area of the steer and has a similar texture to sirloin. It’s best cooked on the rare to mid-rare side, and as always, slice it across the grain for tender pieces.

Ingredients

Servings

1

flat iron steak, 1.5 lbs

1

tbsp

Killer Hogs Steak Rub

Guinness Flat Iron Steak Marinade

12

oz

Guinness Stout Beer

2

oz

Worcestershire Sauce

2

oz

Soy Sauce

1

tsp

Killer Hogs AP Seasoning

Guinness Mushroom Sauce

2

tbsp

Salted Butter

1

Small Shallot, Finely Chopped

5

Cloves Garlic, Minced

8

oz

Baby Bella Mushrooms

0.5

tsp

Kosher Salt

0.5

tsp

Black Pepper

0.25

cups

Soy Sauce

0.25

cups

Worcestershire sauce

1

tbsp

Balsamic Vinegar

1

cups

Guinness Stout beer

1

tsp

Corn Starch

1

tsp

Cold Water

Directions

Step 1

Remove flat iron steak from packaging and trim excess silver skin; place the flat iron in a 1-gallon size zip-top bag. Combine the ingredients for the marinade in a small bowl and pour over steak. Marinate for 1 hour.

Step 2

Prepare charcoal grill for direct grilling at 500 degrees.

Step 3

Prepare charcoal grill for direct grilling at 500 degrees. While grill is heating prepare Guinness Mushroom sauce: Melt butter in a sauce pan over medium heat. Add shallot and garlic and sauté for 2 minutes. Add sliced mushrooms and season with AP seasoning. Sauté for 2-3 minutes until mushrooms are tender. Add Worcestershire, soy, and balsamic reduce for 3-4 minutes; add Guinness and reduce volume by half (approx 5-7 minutes). Combine corn starch and cold water in a small bowl and whisk into sauce. Allow the mixture to reach a slight boil and remove from heat. Serve warm over steak.

Step 4

Remove the flat iron steak from the marinade allowing excess moisture to drip back into the zip-top bag. Season the steak with Killer Hogs Steak Rub on all sides.

Step 5

Place the steak on the grill and cook for 5 minutes. rotate the steak after 2.5 minutes to create grill marks. Repeat the same step for the opposite side for a total cook time of 10 minutes or until the steak reaches 125 internal temperature – medium-rare.

Step 6

Rest the flat iron for 5-7 minutes before slicing and serve topped with Guinness Mushroom sauce.

Grill Like A Pro

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