Chateaubriand Steak, also known simply as Chateaubriand, is a cut of beef sourced from the center of the tenderloin. It typically measures about 5cm in thickness. If it’s less than this, it’s referred to as a tournedos; if it’s more, it’s considered a tenderloin roast. The diameter of the Chateaubriand can vary depending on its position within the muscle, whether at the heart or the tip. Thanks to its location, this cut is renowned for its rich flavors and exceptional tenderness.