Wash the pan with warm water and a small amount of mild soap
Scrub off any rust, residue, or old seasoning
Dry the pan completely with a towel
Heat the pan on the stove or in the oven to remove all moisture
Apply a very thin layer of cooking oil to the entire pan, inside and out
Wipe off all excess oil until the surface looks nearly dry
Place the pan upside down in an oven preheated to 450–500°F
Put foil or a baking sheet on the lower rack to catch drips
Bake for 1 hour
Turn off the oven and let the pan cool inside
Repeat the oiling and baking process 2–4 times for a stronger seasoning
After each use, clean the pan gently, dry it fully, and apply a light coat of oil