Sauce Bordelaise

Sauce Bordelaise (Bordeaux red-wine sauce) teaches one essential lesson: reduce the wine by three-quarters before the half-glaze touches it. That order drives off raw alcohol and concentrates the shallot, thyme, bay, and poivre mignonette (coarsely crushed pepper) into a garnet backbone strong enough to carry beef marrow. Add the half-glaze too early and you merely create a large pot of winey stock that takes an age to correct.

The source formula assumed a saucier on staff, half-glaze and meat glaze drawn from stock never off the fire, and a sauce station where skimming could continue between orders. A salamander has no role here. Prepared half-glaze and meat glaze from your freezer or a careful supplier are the honest home equivalents, a wide heavy pan replaces the vegetable-pan, and a fine-mesh sieve replaces linen. The quantities are multiplied evenly to make about two quarts for serving and freezing, while the source ratios and sequence remain intact. The dedicated station and linen are brigade scaffolding; the three-quarter reduction, half-hour simmer, final meat glaze, lemon, and poached marrow are the dish. One cook, one stove, one evening.

Finished properly, the Bordelaise is clear, wine-dark, and glossy enough to cling to grilled meat without sitting on it like paste. Pale cubes of marrow soften in the sauce but keep their shape. Measure the wine before and after reduction, because that first reduction decides everything that follows.