Step 1

Select the ‘Saute’ function on the Instant Pot. When the pot is hot, add the oil. When the oil starts to shimmer, add the onion and cook until the onion starts to soften, stirring frequently, about 2-3 minutes.

Step 2

Press ‘Cancel’ and add the beef pieces; stir.

Step 3

Add the water or broth, tomato paste, mustard, vinegar, garlic powder, paprika, chili powder, salt, and black pepper. Stir well to combine.

Step 4

Lock the lid into place and cook at high pressure for 40 minutes. Note: It will take some time for the Instant Pot to build up pressure before the 40-minute timer starts. When the cooking time is up, allow for 5 minutes of natural pressure release before flipping the vent valve to ‘venting’ to release any residual pressure.

Step 5

Using two forks, shred the beef directly in the pot (or transfer the beef a plate if that’s easier, then return the beef to the pot after shedding). Stir to combine the shredded beef with the sauce. Serve as desired.