Mix together the kosher salt, granulated garlic and onion, smoked paprika, dried dill weed, and fresh ground pepper.
Pat the roast dry and season it liberally with the mix. Using the high sauté function on the Instant Pot, sear the beef on all sides until a nice, deep brown color has formed.
Once the beef is nicely seared and the fond is well developed, remove the roast and set it aside. Add the tomato paste and stir constantly for a few minutes. Deglaze with the beef broth and make sure you scrape up all the little bits on the bottom of the pressure cooker bowl.
Return the roast to the pressure cooker, add the potatoes, onions, and carrots on top. Add the Worcestershire sauce and a bay leaf.
Place lid on the pot and turn to locked position. Make sure the vent is set to the sealed position. Switch Instant Pot to “pressure cook” on high and set to 60-80 minutes (60 for a 3 pound roast, 80 for a 5 pound roast.
Allow the Instant Pot to do a natural release for about 10 minutes or so, then flip the switch and let it quick release until the valve goes all the way down.
Remove the roast and vegetables.
Make a slurry with the cornstarch and water. Pour it into the cooker bowl and stir until the braising liquid thickens and turns into a gravy. Plate the beef and veggies and serve the gravy on the side.