Pressure Cooker Beef Pot Roast

Season the beef with salt and pepper. Heat the oil in a 4-quart pressure cooker over medium-high heat. Add the beef and cook for 10 minutes or until it's well browned on all sides.Remove the beef from the cooker and pour off any fat. Place a rack in the cooker and place the beef on the rack. Add the carrots, onion and water. Close the cooker and cook over medium heat for 45 minutes with the regulator set for slow steam escape.Remove the cooker from the heat and let stand until the pressure drops. Carefully remove the cover. Remove the beef from the cooker and thicken the sauce, if desired. Serve the sauce with the beef.