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–+ servings
Flat Iron steak sliced on a plate.

The Perfect Steak Marinade

Jill Machovsky
Let's add some flavor to your next steak night! This Flat Iron Steak Marinade creates a tasty meal that your whole family will go crazy for!
5 from 1 vote
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Prep Time 5 minutes
Total Time 5 minutes
Course Dinner
Cuisine American
Servings 4
Calories 440 kcal

Ingredients
  

  • ¼ cup Soy Sauce
  • 2 Tablespoon Balsamic Vinegar
  • 3 Tablespoon Worcestershire Sauce
  • 3 Tablespoon Brown Sugar
  • 3 Tablespoon Finely Diced Onion
  • 3 cloves Minced Garlic
  • 2 Tablespoon Fresh Parsley
  • 4 6 oz Flat Iron Steaks

Instructions
 

  • In a large bowl, whisk together soy sauce, balsamic vinegar, Worcestershire sauce, brown sugar, finely diced onion, minced garlic, and parsley.
    ¼ cup Soy Sauce, 2 Tablespoon Balsamic Vinegar, 3 Tablespoon Worcestershire Sauce, 3 Tablespoon Brown Sugar, 3 Tablespoon Finely Diced Onion, 3 cloves Minced Garlic, 2 Tablespoon Fresh Parsley
    Marinade in a bowl with steaks and a whisk to the side.
  • Into the same bowl add the steaks to the marinade and cover with plastic wrap. You could also add the steaks to a resealable bag and pour the marinade into the bag.
    4 6 oz Flat Iron Steaks
    Flat iron steaks in soy marinade with plastic wrap over the top of the bowl.
  • Marinate for 1 hour up to overnight. Enjoy!
  • *Did you make the recipe? Please leave a 5-star rating and comment below.

Notes

  1. Start hot. Heat your grill (or cast-iron skillet) to around 500 °F before the steak goes on.
  2. Pat dry. Blot off excess marinade so the surface sears, not steams.
  3. Season. Give each side a quick hit of kosher salt right before grilling.
  4. Oil the grates, not the steak. Swipe a paper towel dipped in oil across the grates to prevent sticking.
  5. Check temp. Pull at 130 °F for medium-rare (or your preferred number).
  6. Rest 5–10 min. Let the juices settle, then slice against the grain and serve.
Grab an instant-read thermometer for fool-proof doneness. Pull the steak off the heat when it’s 3–5 °F below your target; it will finish as it rests.
  • Rare 125°-130°F
  • Medium Rare 130°-140°F
  • Medium 140°-150°F
  • Medium Well 150°-160°F
  • Well 160°F

Nutrition

Serving: 6ozCalories: 440kcalProtein: 47gFat: 26gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 10gTrans Fat: 1gCholesterol: 165mgSodium: 185mgPotassium: 773mgCalcium: 15mgIron: 6mg
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