Heat the pan with a dab of bacon drippings in each section, pour the hot drippings into the batter (leaving a bit in the pan which coats the cast iron) re-stir the batter then fill the sections. See my cornbread recipe in the WAGS cookbook. Never add batter to a cool pan. I like the top of my cornbread browner than the picture, so I finish it under broil, to get the top brown, also a convection oven will do this without the broiler being used. To take up cornbread, I just turn the pan upside down onto a wire rack to let the cornbread cool without getting condensation on the bottom.