I havea recipe for Cornbread with Pancetta that I just decided I want to make with our ribs tonight. However, I am having a very lazy day with no desire to leave my apartment to go to a grocery store for stone-ground or regular yellow cornmeal, as the recipe calls for. There is an italian butcher/specialty store across the street which I can pull myself together enough to schlep to - of course, that is where I will get the pancetta too. Question: I know they sell boxes of polenta....but isn't that essentially cornmeal? Can I use it for my cornbread?