Salt the beef. Rest it at room temp for 1 hour.
Meanwhile, combine onion powder, garlic powder, and black pepper. Prep the vegetables.
After the hour, dry the beef thoroughly with paper towels (dry meat sautés best), then rub with the spice mixture.
Heat oil in Instant Pot with the Sauté setting on high. Brown the beef on all sides (~4 minutes per side). Remove beef to a plate.
Add the onion, carrots, celery, and garlic to the pot. Cook, stirring occasionally, until softened and browned (~6 minutes). Remove to a bowl.
Add beef broth, bouillon cubes, Worcestershire, and apple cider vinegar, and scrape up browned bits in the pot (not doing this may result in an error).
Turn the Sauté function off. Return the beef and veggies to the pot. Add rosemary, thyme, bay leaf, and potatoes. The liquid may not cover it all.
Select Pressure Cook (or Manual) on high pressure, and adjust cook time for your meat’s weight – assume 22 minutes for every pound. It’ll take about ~30 minutes to get to pressure.
Let pressure release naturally for 10 minutes, then quick-release the rest (might take another 5 min).
Remove the meat to a cutting board, shred the beef and remove the fat. Serve in a bowl with plenty of juice to keep everything nice and hot!
NOTE: Tried 2.57 lb roast at 55 min - perfect!
NOTE: Tried 3.19 lb roast at 1 hour 15 min - great! But maybe just a little bit less tender? Maybe cuz bigger roast?
NOTE: Tried 2.47 lb roast at 53 min - perfect!
NOTE: Tried 2.77 lb roast at 59 min - perfect!
NOTE: Tries 2.02 lb roast at 45 min - perfect!