It has a pleasant aroma and spicy taste, which is slightly bitter and works well to flavor vinegars. In can be chopped finely to mix in salads, to flavor soups, purées, sauces and is useful for fish and roasted meats. When mixed with herbs, it is recommended to use in small quantities in order to not overpower the other herbs. It is often used with eggs, mixed with butter or mustard. It is an essential ingredient for béarnaise sauce and can also be incorporated into tartar sauce.