Filet de Bœuf Montmorency

Filet de Bœuf Montmorency (butter-roasted beef fillet with cherry Madeira sauce) teaches one stern, useful lesson: the sauce is not an accessory. Madeira must carry the savory liquor of the meat, then cherries, red-currant jelly, and fresh horseradish must meet without turning the plate into dessert. Before touching a pan, know this: preserve the poëling liquor, because without it Montmorency is merely sweetness beside beef.

The original assumed a larding needle, Poëlings (No. 250) as daily kitchen grammar, brown stock never off the fire, a saucier to tend the reduction, and a salamander waiting to glaze the fillet. At home, the butcher or a slim boning knife replaces the larding needle, gelatin-rich stock supplies the sauce foundation, and the broiler gives the final glaze. We keep the internal larding, butter cookery, poëling liquor, and the book's exact half-pint proportion of fruit, jelly, and horseradish. Those are the dish. Brigade quantities and separate hands are scaffolding, so they go. One cook, one stove, one evening.

The finished fillet is deeply bronzed and rosy at its heart, with a lacquered surface and a garnet sauce that tastes first of beef and Madeira, then tart fruit, then the clean warmth of horseradish. When the roast comes out, recover the poëling liquor before anything else; marrying that liquor to the Madeira reduction is the step that decides the dish.