Arrabbiata sauce, or sugo all'arrabbiata in Italian, is a spicy sauce for pasta made from garlic, tomatoes, and red chili peppers cooked in olive oil. "Arrabbiata" literally means "angry" in Italian, and the name of the sauce is due to the heat of the chili peppers.
Arrabbiata sauce is usually served with penne pasta, and may have chopped fresh parsley sprinkled on top. Many recipes call for Parmigiano-Reggiano to be incorporated with the dish, but it is not necessary. There are many variations to the original recipe of arrabbiata sauce; a few include onions to be fried with the garlic and tomatoes.