Thanks for the great tips. By combining them, I was finally successful. Although I don't think my mother used cornmeal mix, I thought that might be my best bet, but I substituted buttermilk for the regular milk in the recipe on the bag. I believe the main problem in the past was not having the oil hot enough so the bottom and sides did not get crunchy enough before I turned the heat down to "bake". This turned out great and brings back some wonderful memories. A friend also thought the resulting cornbread was really good. Here it is:
Skillet Cornbread
2 cups cornmeal mix (Martha White)
1 egg, beaten
1 1/3 C buttermilk
4 TBS oil (2 for batter and 2 for skillet)
Beat egg, stir in buttermilk and cornmeal mix.
Put oil in cast iron skillet and heat on medium until oil is very hot (smoking).
Pour about half the hot oil into the batter and stir. Pour batter into skillet. Cover and turn flame down as low as it will go. Cook for about 20 minutes. Then turn to cook other side.
To turn:
Jiggle skillet to loosen bread-may have to run a knife around edge and/or gently lift with a metal spatula.
Pick up skillet with left hand and tilt right side down to let the bread slip up the edge of skillet (might have to jiggle or even use spatula to get it started).
Let the cooked bottom side slide onto your open right hand and quickly flip upside down back into skillet. (it is not too hot to handle for a few seconds-just don't touch the skillet)
If you have to use the spatula to lift up or turn, make sure it is well under the bread or it will break.
Cook covered for an additional 10-15 minutes. Can lift gently with spatula to peek underneath to be sure it is brown on the bottom.
Turn out on plate with a butter knife under it to keep from sweating. I didn’t want to use a cooling rack because I wanted it to stay hot and besides, that would spoil the image.