Instant Pot 'Pot Roast'

Step 1
Pat roast dry and season liberally with salt and pepper.

Step 2
Turn on a multi-functional pressure cooker (such as Instant Pot), add oil, and select Saute function. Add roast to the hot pot and brown for 5 to 8 minutes per side. Remove to a plate.

Step 3
Add onion to the pot, adding more oil if needed, and saute until browned, 5 to 7 minutes. Add mushrooms; cook and stir until browned, 3 to 4 more minutes. Add wine and scrape up any browned bits with a wooden spoon. Stir in tomato paste, garlic, and thyme.

Step 4
Add beef broth. Place roast on top of the mushrooms and onions. Add potatoes, carrots, and celery. Close and lock the lid. Select high pressure according to manufacturer's instructions; set timer for 80 minutes. Allow 5 to 10 minutes for pressure to build.

Step 5
Release pressure using the natural-release method according to manufacturer's instructions, about 15 minutes. Remove roast and vegetables to a bowl.

Step 6
Switch to Saute function. When juices begin to bubble, whisk in flour and cook to thicken, 2 to 3 minutes.