Wash the pan with hot water and a small amount of mild soap if needed
Scrub off rust, stuck-on food, or old flaky seasoning with a stiff brush or steel wool
Dry the pan completely with a towel
Heat the pan on the stove or in the oven until all moisture is gone
Apply a very thin layer of 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 a preheated oven at 450°F to 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 to 3 times for a stronger seasoning
Use the pan regularly and dry it well after each wash