That means no all-purpose flour and you also don't need any xanthan ... This is the same grind I use for my cornmeal pancakes ...

Close the lid. Shake to mix. Make pancakes. Serve. In a mixing bowl add the dry mix. In a separate bowl, whisk together the milk, egg and butter. Add to the dry ingredients and stir, just to combine.

It works in most recipes that call for cornmeal like pancakes ... You can keep cooking without running to the store with several easy substitutes. Whether you go with flour, breadcrumbs, polenta ...