Bavette à l'Échalote — Flank Steak with Shallot Sauce

Bavette à l'échalote is the quintessential Parisian bistro dish — a thick-cut flank steak (bavette d'aloyau), seared aggressively in a smoking-hot pan, rested, and served with a rapid shallot and red wine pan sauce built in the same pan. The bavette (also called flap steak) comes from the lower sirloin area — it has an open, long-grained texture with generous marbling that produces a beefy, minerally flavour more intense than fillet or entrecôte. The grain runs in clear parallel lines, making it essential to carve against the grain at a steep angle (almost horizontal) for tenderness. Preparation: the bavette, 2-3cm thick and 250-300g per portion, is tempered to room temperature and seasoned with salt only (pepper goes on after cooking — it burns at the extreme temperatures required). Heat a heavy steel or cast-iron pan to the point of smoking (280°C+). Add a film of oil (not butter — it cannot survive this heat). Sear the bavette for 3 minutes without moving (develop the crust), flip once, cook 2-3 minutes for medium-rare (54-56°C — bavette should never be cooked past medium, as the long grain fibres tighten dramatically above 62°C). Remove and rest on a cutting board for 5 minutes. In the same pan, reduce heat to medium, add 30g butter and 4 finely minced shallots, sauté 2 minutes until softened and golden. Deglaze with 100ml red wine (a robust Côtes du Rhône or Cahors), reduce by three-quarters. Add 2 tablespoons veal jus or demi-glace, reduce until syrupy. Finish with a tablespoon of cold butter, a splash of red wine vinegar (for brightness), and chopped parsley. Slice the bavette against the grain in thin, angled slices, fan on the plate, and spoon the shallot sauce over. Pommes frites mandatory.