Dry the pan: After thoroughly cleaning the pan, dry it completely.
Heat the pan: Heat the dry pan over medium-high heat until it begins to smoke. This will cause any remaining moisture to evaporate.
Add oil: Add a thin layer of vegetable oil to the pan; flax seed oil, grapeseed oil or sunflower oil work well because of their high smoke points. Make sure the entire inside is covered with oil.
Reheat: Reheat the pan until the oil begins to smoke. Rotate the pan to make sure the oil is evenly distributed over the surface.
Allow to cool: Allow the pan to cool. Wipe off excess oil with paper towels. Repeat this process several times if necessary to build a stronger seasoning layer.