Fillet of Beef

Filet de Bœuf Rôti (roast fillet of beef) teaches one uncompromising thing: tenderness is not juiciness. The fillet has almost no internal fat, so once its two sinewy envelopes are stripped away, you must replace their protection before fierce heat touches the meat. A thin barde (fat wrapping) of unsmoked bacon or flattened beef fat does the work, guarding the exterior while the centre stays rosy.

The original kitchen assumed a larding needle, a roast cook watching the fire, and a saucier ready with Horse-radish or Albert Sauce (No. 119) or Horse-radish Sauce (No. 138). At home, larding strip by strip is brigade scaffolding you can discard. Overlapping slices of fat, butcher's string, a fierce oven, and an instant-read thermometer keep the intent intact, with either finished sauce made from its own entry and served apart. One cook, one stove, one evening.

The fierce heat and the resting time are not scaffolding. They are the dish. Pull the fillet below its final temperature, then give it twenty untouched minutes before carving; that rest is the one step that decides whether its juices stay in every slice or escape across the board.