A nice description over at The Kitchn on how to season cast iron cookware. I have the parts and pieces from two cast iron sets and they are, by far, my favorite pots and pans. Some of these are well over 50 years old and no All-clad or Caphalon can touch any one of them. From stove top to oven without a worry; seasoned so well they are virtually non-stick. Clean up is never a problem. If you cook at all, go out and buy yourself some decent cast iron cookware, your grandchildren will appreciate it.