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Instant Pot Roast Beef Po Boy

Prep Time 15 mins
Cook Time 40 mins
Total Time 55 mins
Course Main Course
Cuisine American


  • Instant Pot


  • 2 lb beef chuck roast
  • 1 lb beef bone-in shank
  • 4 cups beef broth low-sodium
  • 1 tsp cajun seasoning
  • 2 tbsp olive oil
  • 3 tbsp butter divided
  • 2 onions cut into chunks
  • 8 garlic cloves
  • 2 bay leaves


  • 4 tbsp cornstarch
  • 6 tbsp water
  • 2 tsp salt more or less to taste


Prepare the meat

  • Pat the beef dry with a papper towel. Season with salt and pepper.


  • Press the saute button; add 2 tbsp butter and olive oil. Sear the roast chunk until golden brown on both sides. Remove the roast and repeat with the beef shank. Set all the beef aside.
  • Add onions, garlic and 1 tbsp butter to the Instant Pot and saute until the onions are translucent. Press button again to turn off saute.

Pressure cook

  • Place the roast, shank, beef broth, cajun seasoning and bay leaves in the IP.
  • Pressure cook on high for 40 minutes and natural release. Press the cancel button.
  • Remove the cooked meat and discard bones. Shred meat and set aside.
  • Strain the broth from the IP.


  • Return the broth to the IP. Press the saute button.
  • In a small bowl, add cornstarch and water; whisk. Pour the mixture into the IP.
  • Add salt and stir.
  • Simmer the gravy until it thickens.
  • Pour half of the thick gravy on the shredded meat; toss and mix. Save the rest of the gravy for dipping the sandwich.


  • Warm up the hoagie sub in the oven.
  • Place the shredded meat, lettuce, tomato and pickles on the sub (see pics or video for reference).

Serve immediately. Dip the sandwich in the gravy and enjoy!