The Waterless cooking method step by step list of instructions. See how to cook with waterless cookware by watching our cooking video. This demo uses waterless stove-top cookware with a variety of pots and pans. Watch and learn for a healthier lifestyle. Steam control valves whistle when it is time to turn down the heat. Food is cooked on low heat, with minimum moisture and steamed. The vitamins stay in the vegetables instead of going down the drain. Roasts are steamed on the stovetop instead of the oven. The 5-ply or 7-ply multi-bottom stainless steel spreads the heat evenly across the base for even cooking. This prevents roast from burning.