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Grilled Flank Steak

Marinated in a healthy, easy-to-make, and flavor-packed pineapple and cilantro marinade, this Grilled Flank Steak is so incredibly delicious and ready for any way you want to serve it.

a grilled sliced flank steak on a cutting board.

We love a recipe that can be cooked once and enjoyed multiple ways, and that’s exactly what our new tender, juicy Grilled Flank Steak is! This lean cut of beef is marinated in a tenderizing pineapple marinade that is bursting with flavor. Serve it sliced thinly on its own with your favorite side, in fajitas or tacos, on a crostini, or in sliders; it’s delicious no matter how it’s enjoyed!

Ingredients Needed

a flank steak, olive oil, canned pineapple, red onion, spices, cilantro, lime, garlic, and salt in bowls or on plates and labeled.
  • Flank Steak – We love this cut of meat because it’s lean, it’s often more affordable than other cuts of beef, and it lends well to a long marinade to help tenderize it.
  • Canned Pineapple – Pineapple is a great addition to marinades, especially for leaner cuts of meat, because it contains bromelain that breaks down connective tissues and tough protein fibers. Plus, it adds a great kick of sweet acidity!
  • Cilantro – Fresh cilantro adds some fresh herbal flavor to the marinade.
  • Olive Oil – The base of this marinade that helps tenderize while also infusing the flavors of the other ingredients of the marinade into the meat.
  • Onion and Garlic – Savory components of this marinade.
  • Spices – Salt, Cumin, and Red Pepper Flakes all complement these flavors and tie them all together.
  • Lime Juice – The final complementary acid.
overhead of two blenders, one with cilantro and onion and spices unmixed, and then it all mixed very well.

The marinade is incredibly easy to make. Simply toss all the ingredients into a high-powered blender and blend well until everything, including the red pepper flakes, is well incorporated into a smooth pineapple herb marinade.

a plastic bag with marinade and flank steak inside.

Add the beef and the marinade to a ziplock bag and let it marinate overnight, or for the best results, at least 24 hrs.

a marinade covered flank steak on a plate and then it grilled.

Once ready, grill to delicious perfection for a beautiful Grilled Flank Steak!

Grilling Tips

For the best results, high heat is key for this Grilled Flank Steak! To get those beautiful crosshatched grill marks, turn 90 degrees and onto other spots on the grill to achieve beautiful grill marks.

an overhead of a grilled steak on a cutting board next to a knife.

Grilled Flank Steak, done! Technically medium rare, but see our recipe notes for cooking temps based on how you like your beef cooked. This juicy, tender beef is now ready for however you’d like to serve it!

Serving Ideas

a grilled sliced flank steak on a cutting board.

Slice against the grain

For the ultimate tender beef slices, slice against the grain because this will shorten the muscle fibers and make this lean cut of beef much easier to chew and much more tender. Also, be sure to let the beef rest at least 10 minutes to allow the juices to redistribute, which also contributes to the tenderness of the beef.

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a grilled sliced flank steak on a cutting board.

Enjoy! As always, if you make this recipe or any of my others, I love to hear what you think! Leave a comment below, email me, or you can find me on Facebook, Instagram, and Pinterest!

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a grilled sliced flank steak on a cutting board.

Grilled Flank Steak

Marinated flank steak grilled to juicy, tender perfection
5 from 2 votes
Print Pin Rate
Course: Main Course
Cuisine: American
Diet: Gluten Free
Prep Time: 5 minutes
Cook Time: 7 minutes
Marinate: 1 hour
Servings: 12 4 oz portions
Author: Tracy

Equipment

Ingredients

  • 3-4 lb flank steak
  • 1 bunch cilantro stems removed
  • 1 can pineapple 14 oz with juice
  • 1 small red onion
  • 4 cloves garlic
  • 2 teaspoons kosher salt
  • 1 1/2 teaspoons cumin
  • 1 teaspoon red pepper flakes
  • 2/3 cup olive oil or other neutral oil
  • 1 lime, juice from

Instructions

  • Prep Steak: Add the steak (untrimmed – keep that fat!) to a large ziplop bag.
  • Make Marinade: Add pineapple and the juice, lime juice, red onion, olive oil, cumin, red pepper flakes, salt, garlic, and cilantro to a high powered blender and blend on high until very smooth and all of the ingredients are well blended.
  • Marinate: Add the marinade to the steak, seal, mix with your hands, and then add to the fridge and let marinate for at least 24 hrs.
  • Grill: Preheat the grill on high for 10 to 15 minutes. Before grilling, gently shake the meat out, removing some of the marinade. Place the meat on the grill, and after 2 minutes, rotate the steak 90 degrees and move it to a different spot on the grill (This is what will give those clear grill marks, but not necessary). Allow to cook 2 minutes and then flip again and place on a different spot on the grill. If after these 2 minutes the internal temperature is still below 130, rotate 90 degrees and place on a different spot on the grill for another minute. For medium rare, pull the meat from the grill at 130 degrees internal for medium rare as it will continue to rise another 5 degrees while it rests. The timing will vary based on the thickness of your steak and the amount of marinade still on the meat before grilling.*
  • Rest: Once the flank steak has cooked to the desired doneness, remove from the grill and let rest for 10 minutes for the juices to redistribute in the beef.
  • Slice: With a sharp knife, slice the beef thinly against the grain.
  • Serve and Enjoy!

Notes

Beef Temperatures
125°F – Rare, 135°F Medium Rare, 145°F Medium, 150°F Medium Well, 160°F Well. Remove the meat from the grill when the internal temp reaches 5 degrees below the desired doneness. As it rests, it will rise another 5 degrees.
*Grilling Tips
Using an instant read thermometer is the best way to ensure proper doneness. 
If you have a really thick layer of marinade or a thick flank steak, your meat will take a bit longer. If you have little to no marinade or a thinner flank steak, a little less time would be needed. I prefer a little less marinade on a thicker cut of meat, as it allows for a better Maillard reaction. 

Nutrition

Calories: 183kcal | Carbohydrates: 1g | Protein: 25g | Fat: 8g | Saturated Fat: 3g | Polyunsaturated Fat: 0.5g | Monounsaturated Fat: 4g | Cholesterol: 68mg | Sodium: 452mg | Potassium: 415mg | Fiber: 0.3g | Sugar: 0.4g | Vitamin A: 98IU | Vitamin C: 1mg | Calcium: 31mg | Iron: 2mg
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4 Comments

  1. 5 stars
    This steak came out perfectly! I always have a hard time getting the flavors and the sear just right but I followed the directions and it came out great.

  2. 5 stars
    I was so happy with this recipe. The marinade was delicious and made the steak so tender. My husband said it was one of the best steaks I’ve ever cooked him. We had it with some green beans and french fries. Delicious!

5 from 2 votes

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