To cure a cast iron skillet, you will need to oil it inside and out. You will even oil the handle. Place the skillet in the oven and turn it upside down. Bake the skillet at 350 degrees for one hour. Make sure to put aluminum foil down bottom to catch any oil that might fall. You can find more information here: http://www.motherearthnews.com/Real-Food/1999-12-01/Seasoning-Cast-Iron.aspx
