Hi from Oklahoma Y'all! I'm in need of HELP! I have a Galloping Gourmet cooker...you know, from the 'Infomertial'? It belonged to a friend...I inherited it. But NO INSTRUCTIONS! What worries me is the 'water mark' on it...Can you cook in it without putting water or other liquid in it? I haven't a clue how to start! Sure hope someone out there can help me...suziqt