How many of us only think of cast iron merely as a decoration you hang on a wall, like a nod to days of old, to collect dust? Did you know that it’s making a huge comeback in the cooking world? Here’s why you should grab it from your wall, dust off and heat that bad boy up for use! Cast iron or enamel pans were a staple in every kitchen in the world. In the 1930s Mr. DuPont came out with a protective, non porous surface called polytetrafluoroethylene (PTFE), a substance t