Serves: 8–10
Hands-on: 40 minutes | Total Time: 1½ hours, plus overnight dry-brine
Recipe makes about 1¼ cups.
Step 1: Dry‑brine (up to 24 hours ahead, minimum 45 minutes). Pat the roast very dry. Season all over with kosher salt, set it on a rack over a sheet pan, and refrigerate uncovered for 12–24 hours. The surface will look dry and slightly darkened—that’s exactly right. Pull it out 60–90 minutes before cooking to take the chill off; a cold center cooks unevenly.
Step 2: Heat the oven. Heat the oven to 425°F (220°C), rack in the center. Crack the peppercorns coarsely—a heavy skillet pressed down on them or the coarsest setting on a mill, not a fine grind. You want visible cracked pieces.
Step 3: Sear the bare roast. Heat the oil in a large oven‑safe skillet over high heat until it just begins to smoke. Sear the roast 2–3 minutes per surface, including the ends, until deeply browned all over—about 10–12 minutes total. Transfer to a plate.
Step 4: Apply the crust. Off the heat, brush the roast all over with Dijon, then press on the cracked pepper and herbs so they adhere in an even layer. Dot the top with the softened butter. Pour off all but a thin film of fat from the skillet, return the roast to it, and pop it in the oven.
Step 5: Roast to temperature, not time. Roast until an instant‑read thermometer in the thickest part of the center reads:
| DONENESS | PULL AT | AFTER RESTING |
| Rare | 115°F | 120–125°F |
| Medium‑rare (recommended) | 120–122°F | 130–135°F |
| Medium | 128°F | 135–140°F |
Expect 20–30 minutes for tenderloin, 30–45 minutes for a strip roast. Start checking early—carryover cooking will raise the temperature by 8–12°F after it leaves the oven, which is why pulling at 130°F gives you medium, not medium‑rare.
Step 6: Rest (properly). Transfer the roast to a cutting board, tent loosely with foil, and rest for 15–20 minutes. Don’t wrap it tightly, or the crust will soften.
Step 7: Capture the fond. Pour the fat out of the hot skillet. Add the chicken stock, set over medium heat, and scrape up every browned bit with a wooden spoon. Simmer for 2 minutes, then strain through a fine sieve into a measuring cup, discarding the burnt pepper solids. This is your flavor base.
Step 8: Build the sauce. In a clean saucepan over medium heat, melt 1 tbsp butter. Add the shallot and cook for 2–3 minutes until soft and translucent—not browned. Stir in the cracked pepper and cook for 30 seconds until fragrant.
Pull the pan off the heat before adding the Cognac (it can flare up). Add it, return to the heat, and simmer hard for 1–2 minutes, scraping, until reduced to a syrupy couple of tablespoons and the raw alcohol smell is gone.
Step 9: Reduce and enrich. Add the strained stock and simmer until reduced by half, 3–4 minutes. Whisk in the cream, Dijon, and Worcestershire. Simmer gently for 5–7 minutes until the sauce coats the back of a spoon and leaves a clear track when you draw a finger through it. Stir in any juices that have pooled under the resting roast.
Step 10: Finish and serve. Off the heat, swirl in the remaining 1 tbsp cold butter until glossy. Season with salt and a few drops of lemon juice—this small acidic lift is what keeps a cream sauce from tasting flat. Carve the roast against the grain into ½‑inch slices, and serve with the sauce spooned over or, better, in a warm pitcher alongside so the crust stays crisp.