Flank Steak with Chimichurri Sauce

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Easy Argentinian marinated Flank Steak with Chimichurri Sauce is bursting with bold savory flavors and just a hint of heat. This quick-seared steak is so tender and juicy it will melt in your mouth. 

Have a totally Argentinian dinner party theme by pairing this incredible chimichurri flank steak with my Mexican Street Corn Chicken Pasta Salad or try my Argentinian Chimichurri Chicken Recipe OR make up a big batch of my Chimichurri Sauce and enjoy whenever the mood hits!

Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

About 6 months ago I visited Austin, TX, for the second time. The first visit was when I was a freshman in high school. The second trip was for work. I spent 3 days eating my way around town including the best donut I’ve ever had and my first encounter with flank steak mingled with chimichurri sauce. That steak melted in my mouth.

The juicylicious flank steak combined with the tangy garlic chimichurri sauce had been on my mind ever since, so of course I had to recreate it at home!
Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

Why This Recipe Works 

A good marinade — This steak marinade is super simple, and only involves a couple of pantry staple ingredients. You let the steak sit in the marinade for at least 30 minutes or up to 8 hours or overnight for sheer steak perfection. 

Chimichurri sauce — If you’re a steak-and-sauce combo fan, may I suggest you back away from the A1 and make this super simple, garlicky chimichurri sauce ASAP. It will change the way you think of steak forever. 

Universally loved — I don’t know many people who don’t like steak and if they don’t then maybe they just haven’t tasted this one yet! I promise, if you’re a steak lover, then you’ll love this flank steak recipe. 

Perfect for guests — Steaks are great to cook for one sure, but it’s even more fun to grill them out for a crew. Wow last-minute guests or your monthly couples’ dinner party with these amazing chimichurri steaks.

Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

Here’s How You Make It

There are three little steps to making this chimichurri steak, but don’t be put off by that, they’re all super easy and when you put it all together you’ll be so grateful you did! 

  1. First, make the marinade by putting all the ingredients together in a jar or in a bowl. Either shake the ingredients together or whisk them together and then pour them over the steak in a large, air-tight bag. Seal it up and let it sit in the fridge for 30 minutes or up to all night long. 
  2. Now combine the chimichurri ingredients together in a blender or food processor. You want these ingredients to be chopped and mixed together well, but stop mixing way before you hit “smoothie” level blending. Use the “pulse” button on your food processor for best results. 
  3. Now, preheat a skillet with some oil in it on your stovetop or heat up your grill to medium-high heat. Add the steak and sear on each side for 6-8 minutes. You want the steak to be browned on the outside and light pink on the inside
  4. Let the steak rest for a few minutes, then when you’re ready to eat it, slice it across the grain, add chimichurri sauce over the top and dig in!

Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

What Is Chimichurri Sauce Made Of? 

Chimichurri sauce is typically made of parsley, garlic, some kind of vinegar, and spices such as salt, pepper, oregano, and red peppers in olive oil. 

I based mine off the sauce I had in Austin. As most foods go, “standard” sauces can vary across regions. That’s why mine also includes cilantro, onions, red pepper flakes, red wine vinegar and Italian seasoning. But feel free to experiment with herbs and spices till you find the perfect combination of chimichurri sauce for you!

Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

Expert Tips 

  • When grilling/searing your steak, you want to watch for a blackened outside and a juicy, barely-pink (but not red) center. As soon as the pink starts to disappear, your steak is ready. The other really important step is to cook the steak quickly at a high temperature. If you cook it too long it will get tough and lose that melt-in-your-mouth quality.
  • Be sure to let the steak rest for about 5 minutes or so on a cutting board (so when you cut it the juices don’t run out everywhere), and then cut across the grain in very thin strips.
  • If you don’t know what it means to cut “across the grain,” it’s easy as can be. Just look at the steak and you will see that it has parallel lines running in one direction – cut across the lines, in the opposite direction. This is called cutting across the grain. It makes a huge difference in how tender your meat will be when you eat it and trust me, you can definitely tell the difference when you’re chewing juicy and super tender steak instead of chewy tough flank steak.

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Did you make this Flank Steak with Chimichurri Sauce recipe? EXCELLENT! Please rate the recipe below! 

Flank Steak with Chimichurri Sauce | lecremedelacrumb.com

Flank Steak with Chimichurri Sauce

Easy Argentinian marinated Flank Steak with Chimichurri Sauce is bursting with bold savory flavors and just a hint of heat. This quick-seared steak is so tender and juicy it will melt in your mouth.
4.69 from 41 votes
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes
Servings: 4 servings

Ingredients

  • 1 1/2 pounds flank steak

Marinade

  • 1/4 cup oil
  • 1 teaspoon chili powder
  • 1 teaspoon onion powder
  • 1 teaspoon salt
  • juice of 1 lime

Chimichurri Sauce

  • 1/2 cup cilantro
  • 1/2 cup parsley
  • 1/2 onion, diced
  • 1 teaspoon salt, or to taste
  • 1/4 teaspoon pepper, or to taste
  • 1 tablespoon garlic
  • 1/2 teaspoon Italian blend seasoning
  • 1/2 teaspoon crushed red pepper flakes
  • 1/3 cup oil
  • 2 tablespoons red wine vinegar or apple cider vinegar

Instructions

  • Whisk together marinade ingredients. Combine marinade and steak in a large ziplock bag. Seal and chill for 30 minutes, or up to overnight.
  • Combine all chimichurri ingredients in a blender or food processor, and pulse until smooth.
  • Preheat a an oiled skillet or grill to medium-high heat. Sear steak for 6-8 minutes on each side until heavily browned on the outside and slightly pink in the middle.
  • Thinly slice steak across the grain and serve with chimichurri sauce on top.

Notes

  • When grilling/searing your steak, you want to watch for a blackened outside and a juicy, barely-pink (but not red) center. As soon as the pink starts to disappear, your steak is ready. The other really important step is to cook the steak quickly at a high temperature. If you cook it too long it will get tough and lose that melt-in-your-mouth quality.
  • Be sure to let the steak rest for about 5 minutes or so on a cutting board (so when you cut it the juices don’t run out everywhere), and then cut across the grain in very thin strips.
  • If you don’t know what it means to cut “across the grain,” it’s easy as can be. Just look at the steak and you will see that it has parallel lines running in one direction – cut across the lines, in the opposite direction. This is called cutting across the grain. It makes a huge difference in how tender your meat will be when you eat it and trust me, you can definitely tell the difference when you’re chewing juicy and super tender steak instead of chewy tough flank steak.

Nutrition

Calories: 538kcal | Carbohydrates: 3g | Protein: 37g | Fat: 41g | Saturated Fat: 6g | Trans Fat: 1g | Cholesterol: 102mg | Sodium: 1272mg | Potassium: 682mg | Fiber: 1g | Sugar: 1g | Vitamin A: 990IU | Vitamin C: 12mg | Calcium: 60mg | Iron: 3mg
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Comments

Made this for Valentines day and we loved it! I was just hOping to specify for the future – What type of oil is recommended for the marinAde and Sauce?

    So glad you enjoyed this! Though others will work, I prefer extra virgin olive oil.

I have a have a hard Time cooking a tender steak. Any suggestions

I’d love to know where you ate the steak in Austin. I can’t wait to try this at home.

5 stars
I made this tonight and it was delicious. the flank steak i found at the market was tenderized, so i’m not sure if that made a difference. i will definitely make again.

    Thanks for your feedback!

Hi Tiffany, what haS trans fat in it in this recipe? I dont want to eat it but dont see what it could be in?

    I don’t have that information on hand at this time, sorry.

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