Q: I have a cast-iron skillet that I have been using for a few years. It has brown, rust-colored stains that don’t come off, no matter what I do. I’ve tried kosher salt and a small chain, soap, a ...

Cast-iron cookware requires regular seasoning to create a protective, non-stick layer and prevent rust. To season a pan, apply a thin layer of a high oleic oil, like grapeseed oil, and bake it in the ...