A few months ago I wanted to get Mom a small(~7-8") cast iron skillet, something that would be just right for her to make one package of cornbread mix. All the cast iron cookware I can find has a cooking surface inside that is just as rough as the rough external surface! Is anything easily available that has a smooth cooking surface, or will this be a garage sale search? The "Lodge" brand stuff looks good *except* for the rough cooking surface. What are they thinking?