A method and system for facilitating trading of equity and index options is provided. A low-resistance electrical connection structure is provided. Each programmable cooking device includes a programmable control for controlling the cooking device to carry out sequences of cooking operations each of which may use a different cooking power and cooking time duration. The upper face has a U-shaped slot and a wedge-shaped slot, the slots being adapted to receive the outer end of the socket portion. In operation, the electrode functions as an effective heat sink.