We say polenta in English too (it’s actually an Italian word).
e.g."Polenta is a golden-yellow Italian cornmeal made from dried, ground maize (corn), and also the name given to the savoury cornmeal porridge that’s made by mixing cornmeal with water and simmering and stirring until it thickens - a staple dish of northern Italy. Polenta can be ground coarse or fine and is widely used in the southern states of America to make a variety of dishes, including cornbread, because maize is a major crop in the US." (http://www.bbc.co.uk/food/polenta)