Wash the griddle thoroughly with hot water and a stiff brush
Dry completely
Apply a thin, even layer of cooking oil (use a high-smoke-point oil like canola, grapeseed, or flaxseed)
Heat the griddle on high until the oil smokes lightly
Turn off heat and let it cool
Wipe off excess oil
Repeat oiling and heating 2–4 times until the surface looks dark and slightly glossy
After the final seasoning, wipe lightly with oil and reheat briefly until it stops smoking
Let cool
Before each cooking session, wipe off any residue and heat to cooking temperature
After cooking, while warm, scrape residue and wipe with a thin coat of oil if needed
Avoid soap and soaking; use hot water and a scraper, then dry and lightly oil