have passed you can remove the pressure cooker from the stove and gently run cold water down the side of the pressure cooker (not near the valve on top) to quickly reduce the pressure
Mix remaining soup, water and Worcestershire Sauce and pour over meatballs. Combine meat, rice, egg, onion, salt and pepper and 1/4 cup of the condensed soup
With hands, shape into small meatballs 1inch to 1 1/2 inch (3cmm) are best shape. This can also be cooked on the stovetop but add 2 tins of water and cook covered for 1 hour)
(You can also make it on the stovetop, by first heating it till water boils and then reducing heat to medium, but you have to be careful not to burn the bottoms of the peppers