A cooking system includes a housing defining a hollow chamber configured to receive food. The housing has an upper portion defining an opening to said hollow chamber. A lid is movable relative to the housing between an open position and a closed position. The lid seals the opening to the hollow chamber when in the closed position. A portion of the lid is selectively positionable to form a pressure-tight heating volume between the hollow chamber and the portion of said lid. At least one heating element is associated with at least one of the housing and the lid. The at least one heating element is arranged within the pressure-tight heating volume.