The four-move pan sauce

One: don’t wash the pan

Those brown patches welded to the bottom after searing are called fond, and they are the most concentrated flavour in the whole dish — the same Maillard compounds as the crust, minus the meat. Cooks who scrub the pan at this point are throwing away the sauce and then making a worse one from stock.

1. Fond stuck on
2. Liquid goes in
3. Sauce

Worth remembering Brown patches are the sauce. Black patches are bitterness — wipe those out.

Two: deglaze while it’s hot

Pour in wine, stock or even water and the fond dissolves off the metal almost instantly — you can lift it with a wooden spoon in seconds. Do it while the pan is still hot; on a cooled pan the fond has to be scraped rather than dissolved, and half of it stays behind.

Worth remembering Liquid in, spoon across the bottom, and everything brown joins the sauce.

Three: reduce until it coats

Now boil it down. Water leaves, flavour stays, and the sauce thickens and intensifies at the same time. Stop when it clings to the back of a spoon thickly enough that a finger drawn across leaves a lane that holds its edges. Season now rather than earlier — salt concentrates along with everything else.

1. Runs off
2. Holds a lane
3. Curdled

Worth remembering Season a reduction at the END, or you are seasoning a sauce that no longer exists.

Four: off the heat, cold butter

Take the pan off the heat and whisk in cold butter a cube at a time. The sauce turns opaque, satiny and about a shade lighter, and it starts clinging to food instead of running off. Above about 70 °C this breaks into a greasy slick — which is why the pan comes off the burner first, and never goes back.

1. Split
2. Coming together
3. One sauce

Worth remembering Fond, deglaze, reduce, mount. Four moves, five minutes, no recipe needed.