You will want to use a fine or medium ground cornmeal. Most cornmeal you find at the store are a fine or medium. I typically use yellow cornmeal because it’s what I have in my pantry. But either white or yellow cornmeal will work just fine in this recipe. The finest grind is corn flour which will be too light and powdery for our pizza. The coarser cornmeal gives an unpleasant texture to the pizza as it’s too gritty.