Sofrito is heavily emphasized as the third critical component in a "sofregit" base along with tomatoes and onions. Garlic is optional, as it is not considered an integral part of the standard "sofregit" recipe. Some "sofregit" recipes do not contain tomatoes at all, but are made more complex with the addition of diced vegetables such as leeks or bell peppers. In Italian cuisine, chopped onions, carrots and celery is battuto, and then, slowly cooked in olive oil, becomes "soffritto". It is used as the base for most pasta sauces, such as arrabbiata sauce, but occasionally it can be used as the
Tomato sauce cuisine, there is a tomato sauce known as a Creole sauce. It is similar to Italian tomato sauce, but features more Louisiana flavors derived from the fusion of French and Spanish cooking styles. They both usually contain the traditional holy trinity of diced bell pepper, onion, and celery. "Tomato gravy" is distinct from the term as used by Italian Americans when referring to a type of tomato sauce particularly where tomatoes were a staple food. The cooked tomatoes, some fat (usually cured pork fat) and flour are cooked together until thick, and seasoned with salt and pepper. Onions or bell