steak fillet

Steak fillet, also known as filet mignon, beef tenderloin, or Châteaubriand depending on its size and cut, is the most tender muscle from the short loin of cattle (Bos taurus). This cut originates from the psoas major muscle, which runs along the spine and is used minimally by the animal, resulting in exceptionally tender meat with fine marbling. The muscle is characterized by its lean profile, subtle beef flavor, and buttery texture. The fillet is prized across culinary traditions and commands premium prices due to its tenderness and desirability. Variations exist by region: French butchery distinguishes the tenderloin into multiple sections (filet de centre, filet mignon, queue de filet), while American and British butchers typically divide it into distinct steaks or roasts.

Steak fillet is a premium cut served as a centerpiece in fine dining establishments worldwide, most commonly prepared as a pan-seared or grilled steak. Its inherent tenderness allows for high-heat cooking methods without risk of toughness; the meat benefits from simple preparations that showcase its delicate flavor—a light sear with finishing salt and butter, or classic sauces such as béarnaise, peppercorn, or red wine reduction. Beyond steaks, the full tenderloin may be roasted whole as a show-stopping entrée or cut into medallions for dishes like beef Tournedos or filet de boeuf en croûte (beef Wellington). It pairs exceptionally well with rich accompaniments such as foie gras, truffle, or bone marrow, and is equally suited to elegant vegetable sides such as asparagus or gratin dauphinois.