What exactly is polenta? Is it cornmeal? Is it grits? Alas! I have the answer. Or rather Brette Warshaw of food52.com has the answer and explained it most swimmingly. In short, the answer: it's all ground up corn ;) Read the post "Cornmeal vs. Grits vs. Polenta vs. Masa" Knowing this pertinent information would have saved me a lot of time and frustration walking up and down isles trying to find cornmeal labeled "polenta"