What is All-Clad stainless steel cookware and why is it the best top-of-the-line bakeware you can buy? All-Clad cookware is made with a heavy aluminum inside which extends up the sides of the pan. It is coated with a stainless steel cooking surface and has an outside layer of magnetic stainless steel. This type of bakeware is ideal for cooking on a gas stove where the flames can burn up the...