Cast Iron Cornbread Pan. Remove the pan from the heat, wipe out the excess shortening and let it cool. In a bowl, blend together cornmeal, flour, baking powder, and salt.

Preheat oven to 400 degrees f, leaving the skillet in the oven while it heats. Preheat oven to 375 degrees & place cast iron inside to preheat. The protein in the batter reacts with the metal to create a layer that adheres to both cast iron.