A Ding Dong is chocolate cake that is sold by Hostess Brands. It is round with a flat top and bottom, about three inches in diameter and a little more than an inch high, similar in shape to a hockey puck. A white creamy filling is injected into the center, and a thin coating of "chocolate" glaze covers the entire cake. The cake was originally wrapped in a square of thick aluminium foil, enabling it to be carried in lunches without melting the chocolate glaze.