Teriyaki Beef Sirloin Flap Instant Pot

Teriyaki Beef Sirloin Flap Instant Pot

Have you ever had the pleasure of cooking and eating Sirloin Flap Beef? It is a cut of beef that is becoming more mainstream by each passing year. I personally love it. The Sirloin Flap looks just like Waygu beef from Japan. So beautiful and highly marbled. Now, if your not into fatty cuts of beef, no worries. This recipe doe not end up fatty one bit. The fat renders perfectly in the Instant Pot. The first time I cooked Sirloin Flap in the Instant Pot I was shocked. 

The value of the “Instant Pot” is it cooks food quicker than traditional cooking methods. For this recipe, we will be using the pressure cooker setting. When dealing with fattier cuts of meat you’d think you would need longer cooking times to render the fat. I can tell you the fat renders beautifully and flavors the meat just like basting the meat as it cooks. #Perfection.

If you own an Instant Pot you’ve most likely cooked a pot roast at some point. Turns out great. Yet, still takes a long time to braise low and slow. I can tell cooking Sirloin Flap in the Instant Pot under pressure is nothing short of amazing. Best part, it only takes 25 minutes plus the time to pressurize the Instant Pot.


Teriyaki Beef Sirloin Flap Instant Pot

How To Cook Sirloin Flap In The Instant Pot

Key Note: Make sure the Sirloin Flap meat isn’t’ ice cold straight out of the refrigerator going straight into the Instant Pot.

First, Season the Sirloin Flap. I like using Himalayan salt


Himalayan salt has over 50 elements from the periodic table. A powerhouse of things your body needs and wants. #healthy

I suggest you convert over to Himalayan salt. The second type of salt I like using is sea salt. Then finally Kocher salt / aka Chef Salt

Himalayan Salt Purchase Link Below

himalayan salt


Himalayan Salt is the Worlds Most Healthiest Salt

After salting the Sirloin Flap, our next step is adding some oil to the outside of the Sirloin Flap. This will help the Dry Rub we are adding stick.

I have an offer for you. Signup for our newsletter here and get instant access to the Secret Dry Rub Recipe. One of my personal recipes.

secret bbq dry rub recipe


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Secret BBQ Dry Rub Recipe

secret bbq dry rub recipe



Photo: Adding oil to the Sirloin Flap

add oil to the sirloin flap to help the secret bbq dry rub stick How To Cook Sirloin Flap In The Instant Pot

Add a generous amount of the Dry Rub or your favorite dry rub. Choice one you like with Beef.

add dry rub to sirloin flap meat

Place the roasting rack in the bottom of the instant pot – We do not want the liquid we are about to add to touch the Sirloin Flap while it cooks

place the roasting rack in the bottom of the instant pot

Add 1 1/4 Cups of Water – Plus 3 Tablespoons of Soy Sauce

adding 3 tablespoons of soy sauce to the instant pot

Place the sirloin flap into the Instant Pot

place the sirloin flap in to the instant pot

Secure The Instant Pot Lid & Make Sure The Valve Is Set To Sealing ( Very Important )

secure the instant pot lid

Make sure to set the instant pot valve to sealing

Instant Pot Cooker Settings

Set the Instant Pot to the Pressure setting “Meat/Stew”, Normal Pressure / Timer 25 Minutes

set the instant pot for cooking sirloin flap

Meanwhile, as the Instant Pot is cooking we are going to make a homemade Teriyaki sauce. mmm

Homemade Teriyaki Sauce Recipe


  • 1 cup sugar
  • 1 cup sake
  • 1/3 cup mirin (rice wine)
  • 1 tablespoon rice wine vinegar
  • 1 cup low-sodium soy sauce
  • 1 teaspoon minced fresh ginger
  • 1/3 cup water
  • 2 tablespoons cornstarch
  • 1 tablespoon grated shallot

The key to getting the right Teriyaki sauce consistency is cooking the sauce on the stovetop. As the sauce heats it will start to thicken.

when you know its safe to open the instant pot

Take note of the pressure indicator. When the Instant Pot is fully pressurized and not safe to open you’ll notice the gauge pushed outward.


instant pot safety gauge


sate to open the instant pot

Next, remove the Sirloin Flap from the Instant Pot and paint on some of the Teriyaki sauce

You need to allow the meat to rest before slicing, or all the juices will run out and the meat will become dry. This RULE goes for all cuts of beef. 3 to 5 minutes for 1 to 2 pound cut.

Slice Against The Grain For Maximum Tenderness

Teriyaki Beef Sirloin Flap Slicing



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Teriyaki Beef Sirloin Flap Instant Pot

Luxurious Instant Pot cooking. Using the special cut of beef called Sirloin Flap. This is fancy Instant Pot Beef cooking... Enjoy!
4 from 4 votes
Print Pin Rate
Course: Main Course
Cuisine: Instant Pot
Keyword: Teriyaki Beef Sirloin Flap Instant Pot
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 2


  • 1 to 2 pounds Sirloin Flap /source= Whole Foods
  • Himalayan Salt /or Sea Salt / enough to cover meat
  • BBQ Dry Rub / enough to cover meat
  • 3 tablespoons Soy Sauce

Teriyaki Sauce

  • 1 cup Soy Sauce
  • 1 cup Brown Sugar
  • 1 cup Sake / Japanese Rice Wine
  • 1/3 cup Rice Wine Vinegar
  • 2 tsp Shallot / fine minced
  • 1 tsp Ginger / fine minced
  • 1/3 cup Water


  • First step: Take the meat out of the refrigerator and allow to come close to room temperature. 5 minutes. It's ok for the meat to have a slight chill when going into the Instant Pot.
    Salt the Sirloin Flap. Use enough to cover the entire piece of meat. I suggest using Himalayan Salt
    Then using a brush, paint on some oil like canola oil. This will help the seasoning stick. 
    Add the bbq dry rub. Add enough to cover the entire piece of meat. Allowing the meat to sit awhile with the dry rub on will help flavor the meat more.
  • Add 1 1/4 cups of water to the Instant Pot alongside 3+ tablespoons of soy sauce.

Instant Pot Cook Settings

  • Using the pressure cooker setting "Meat/Stew", Under normal heat, & set timer for 20 to 25 minutes. 20 minutes for more medium rare
  • The Instant Pot will pressurize fairly quickly and the timer will start to count down.
  • Once the timer goes off, allow the vent valve to release the pressure. Quick release. You do not want to slow release or risk overcooking the meat. 
    After the Instant Pot lid is off. ( Safe to open the lid once the metal pressure indicator fails back into the Instant Pot -
  • Next paint of a nice coat of Teriyaki sauce. Do this quickly as the meat starts to rest a minimum of 5 minutes before slicing the Teriyaki sauce will soak into the meat adding great depth of flavor.
  • KEY: After resting the meat, slice "against" the grain for maximum tenderness. 

How To Cook Sirloin Flap In The Instant Pot