Set the saute mode on your Instant Pot and add in oil
Once hot, brown roast on one side for 5-6 minutes then turn over and brown the other side for another 5-6 minutes.
Add in onions, half of the jar of pepperocini pepper, ¼ cup pepperocini brine, Italian seasoning mix and water.
Cover with lid and set the seal mode to closed.
Press Manual Mode and set time to 55 minutes.
Give the lid a Quick Release and remove lid.
Shred roast with 2 forks and add in the remaining pepperoncini peppers that have been drained.
