Châteaubriand, Fillet Steak, Tournedos

Châteaubriand, bifteck de filet et tournedos (a center-cut tenderloin roast, thick fillet steak, and small round medallions) teach one clean principle: the pan knows thickness, not title. All three come laterally from the thick heart of the fillet. Their tenderness is already given; your work is to build a dark crust without carrying the lean centre past the doneness you meant.

The old service assumed a grill cook handling Châteaubriand, a sauté cook watching the smaller cuts, a saucier with stock never off the fire, and a salamander ready to touch up a waiting garnish. At home, one heavy skillet, an oven, braised endives, and a reduction made from the beef's own fond do the same work. The separate station and last-minute broiler are brigade scaffolding, so they go. The deep sear, measured doneness, proper rest, and garnish adjusted to the size of the meat are the dish, so they stay. One cook, one stove, one evening.

Keep the biftecks 1½ inches thick, make the tournedos half their weight but nearly as thick, and keep the Châteaubriand large enough to carve. Then use a thermometer and pull the meat early. Tenderloin gives almost no warning between rosy and overdone, and that final temperature is the one step that matters most.