Heat bacon drippings in a large well-greased black iron skillet. In a large mixing bowl, mix cornmeal, flour, salt, baking powder, soda and sugar. Add buttermilk and stir rapidly. Add eggs and mix. Add hot drippings and stir rapidly. Pour batter into lot skillet (see note), cover, reduce heat. Cook on top of stove until bread is lightly browned and almost cooked through -- enough that you can turn the corn bread easily with a wide spatula or pancake turner -- about 5 to 6 minutes. Turn and brown on other side, about 2 minutes. Cut into wedges to serve. Makes 6 to 8 servings Note: If you have an electric range, heat two burners -- one hot, the other on low. When you pour the batter into the hot skillet, move immediately to low-heat burner to finish.