Abstract: A pressure cooker includes a bowl and a removable lid carrying at least two jaws mounted to move on the lid between a locking position for locking the lid on the bowl and an unlocking position, each jaw being connected to a slider mounted to slide on the lid so that sliding of the slider causes the associated jaw to move towards one of the positions. A pinion is mounted to turn on the lid about an axis that is vertical in operation, each slider having a rack-forming toothed portion which co-operates with the pinion so that turning the pinion causes all of the jaws to move simultaneously towards one of the positions.