Instant Pot Flank Steak

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This Instant Pot Flank Steak is so simple to cook and it’s an incredibly tender cut of steak that can be served with almost any side dish.

» You may also like this Instant Pot Frozen Chicken Thighs and Instant Pot Rack of Lamb.

Sliced flank steak

Flank steak is usually cooked on the grill, but that’s not the only way to cook it. If you don’t want to use the grill or stove top, or you’re away from your kitchen and the Instant Pot is the only appliance you have, it’s just as easy to do.

With the Instant Pot, you can decide if you want to cook the flank steak quickly to achieve a medium to well-done temperature. 

Instant Pot flank steak can be enjoyed as is with a side salad, but it can also be used in many other recipes. Slice the steak up and add it to tacos, fajitas, or classic steak sandwich. There are so many ways you can go with this recipe, so give it a try!

Sliced flank steak

Ingredients You Need

  • Flank steak – This is a lean cut of beef that is best cooked quickly for a medium to medium-well temperature. You can also use other similar cuts like Flat Iron or Bavette.
  • Salt & Ground Black Pepper – These are essential seasonings to bring out the flavor of the meat.
  • Cooking Oil – Oils with high smoke points will work best (i.e. canola or avocado oil).
  • Beef Broth – The addition of beef broth will give the flank steak a richer flavor while locking in the moisture. You can use water, but for me the added flavor is worth it.

Equipment Information

  • Instant Pot: This recipe uses a 6 qt. Instant Pot. If you’re using a different size pot, you will need to adjust the amount of liquid. For instance, an 8-quart Instant Pot requires more liquid to pressurize.

How to Make Instant Pot Flank Steak

Season the steak with salt and pepper on both sides. Be generous as some of it will come off during the sear.

Heat the Instant Pot on sauté mode then add the cooking oil. When it’s hot, place the steak in the pot and sear for about 1 minute per side. Don’t go any longer or you will risk overcooking it.

Raw flank steak in the Instant Pot

Remove the steak from the Instant Pot and set it aside. Turn off sauté mode.

Flank steak in the Instant Pot

Pour in the beef broth. It’s best to add hot broth, instead of cold. Adding it hot will ensure that the Instant Pot doesn’t need any additional time to come up to pressure. It will very quickly come up to pressure and start cooking. This is important because you need to quickly cook the steak, particularly if you want it to be medium or medium rare.

Deglaze the pot with a whisk to remove the browned bits. This will add lots of extra flavor to the broth that will be infused into the meat as it cooks.

Add the steak back into the pot. You don’t need the trivet for this. You can put the meat right into the broth.

Secure the lid in place and set the valve to sealing. Press the pressure cook or manual button and set the time to 3 minutes for medium rare, 5 minutes for medium, and 7 minutes for medium well. It will take no more than 5 minutes to come up to pressure. In my 6 quart Instant Pot Pro, it took less than 30 seconds to come up to pressure, because I added hot broth to the pot.

Whole flank steak

Check the Internal Temperature

When the cook time is up, do a quick pressure release. Test the internal temperature of the meat with an instant read meat thermometer. It should reach the temperatures below, depending on how you want it cooked.

  • Medium rare – 130° F (steak will have warm red center)
  • Medium – 140° F (steak will have a hot pink center and slightly firmer texture)
  • Medium well -150° F (steak will have a dull red/brown center and firm texture)

I cooked mine to 135° F, which produced a center that was between medium rare and medium. For me, that was perfect. I cooked it for 4 minutes to achieve this result.

Please be aware that every situation is different and you might not have the exact same results as me. This is why it’s both important to experiment once or twice to see how your Instant Pot reacts, and to check the internal temperature of the meat before taking it out. I always say to err under and cook it for 1 minute less than you want it to be. Then if it’s under, you can turn it back on for 1 more minute.

Don’t worry that it might take a long time to build back up pressure. It will almost instantly turn back on because the water is already hot and there’s not a lot of volume in the pot.

When you’ve reached the desired temperature, transfer the steak to a plate to rest for 5 minutes. Slice the steak against the grain and serve.

Sliced flank steak

Tips & Suggestions

  • Let the steak rest for a few minutes before slicing it. This will give you a juicier cut of flank steak. 
  • Add an extra layer of flavor with our meat marinade or homemade dry rub.
  • I cooked this in the 6 quart Instant Pot. If you cook in an 8 quart pot, use 1 1/2 cups water. If you cook in a 3 quart pot, you might need to cut the steak in half to fit. Use the same amount of water.
  • The meat will be medium to well-done in 5 minutes. If you want to cook it to well done, add 2 more minutes to the cook time. It’s difficult to get medium-rare in the Instant Pot because the steak is cooking in water, but I use 3 minutes for medium-rare.

Questions About the Recipe

What other cuts of meat can I use?

Thankfully the Instant Pot can cook up many types of steaks! If you can’t find flank steaks at your local grocery store, flat iron steaks make for a good substitute. They will have about the same cook time as flank steak, so you won’t have to worry about adjusting the recipe too much.

Can I make the steak rare?

Yes. Depending on how well cooked you like your steak, the amount of time you leave the meat in the Instant Pot will vary. Follow the recipe the first time you make this Instant Pot flank steak, and if it’s too cooked for your taste, then lower the cook time by about 2 minutes. The steak needs to reach a minimum internal temperature of 125°F to 130°F to be safe to eat.

What does it mean to slice against the grain?

The best way to slice a cut of meat is by slicing against the grain. This locks the juices into the meat and makes it easier to chew. The “grain” describes the way in which the muscle fibers run along the meat. They look like lines or shallow cuts in the meat. You want to cut against these lines when slicing the flank steak. 

For example, if the muscle fibers go horizontally on the meat, you should slice the meat vertically and vice versa.

Sliced flank steak

» Check out our Instant Pot Cooking Times Cheat Sheet so you never have to look up times again for your favorite foods you make in the pressure cooker. Print or bookmark it so you always have it handy!

What to Serve it With

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Sliced flank steak

Instant Pot Flank Steak

This Instant Pot Flank Steak is so simple to cook and it's an incredibly tender cut of steak that can be served with almost any side dish.

Note: Made in a 6-qt Instant Pot

4.77 from 30 votes
Prep Time 5 mins
Cook Time 10 mins
Pressurize Time 5 mins
Total Time 20 mins
Course Main Course
Cuisine American
Servings 4 Servings
Calories 346 kcal

Equipment

Ingredients
  

  • 2 pound flank steak
  • 1 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 1 tablespoon cooking oil
  • 1 cup beef broth hot

Instructions
 

  • Season the steak with the salt and pepper on both sides.
  • Heat the Instant Pot on sauté mode, add the cooking oil. When hot, place the steak in the pot and sear for 1 minute per side.
  • Turn off sauté mode. Remove the steak. Pour in the hot beef broth and deglaze the pot with a whisk to remove the browned bits.
  • Add the steak back into the pot.
  • Secure the lid in place and set the valve to sealing. Press the pressure cook or manual button and set the time to 4 minutes. It will take about 5 minutes to come up to pressure.
  • When the time is up, do a quick pressure release and transfer the steak to a plate to rest for 5 minutes.
  • Slice the steak and serve.

Notes

  • I cooked this in the 6 quart Instant Pot. If you cook in an 8 quart pot, use 1 1/2 cups water. If you cook in a 3 quart pot, you might need to cut the steak in half to fit. Use the same amount of water.
  • The meat will be medium to well-done in 4 minutes. If you want to cook it to well done, add 2-3 more minutes to the cook time. It’s difficult to get medium-rare in the Instant Pot because the steak is cooking in water, but you can try 3 minutes for medium-rare.

Nutrition

Calories: 346kcalCarbohydrates: 0.2gProtein: 49gFat: 15gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gTrans Fat: 0.01gCholesterol: 136mgSodium: 925mgPotassium: 809mgFiber: 0.1gSugar: 0.003gVitamin A: 1IUCalcium: 53mgIron: 4mg
Keyword Beef
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Sliced flank steak

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