Tonkatsu is a breaded and fried pork cutlet, generally no more than two centimeters thick. It is served with a sauce reminiscent of Worcestershire sauce or a spicy mustard. Some restaurants fancy the dish up a bit by placing cheese or other ingredients (including, rumor has it, a chocolate bar) between slices of the meat before breading. Cabbage is the traditional side dish of tonkatsu, though it may also be included with a variety of other daily special ingredients.