Main course · Tied, roasted pink
Beef tenderloin roast
A beef tenderloin roast is a whole or centre-cut beef fillet, trimmed, tied to an even thickness, seared and roasted until the centre is pink, then sliced into thick medallions. It is the leanest of the large holiday roasts, tender because the muscle does almost no work: a trimmed 1.8 kg / 4 lb tenderloin serves about eight, roasted at 220 °C / 425 °F and pulled at 50–52 °C / 122–126 °F for medium-rare.
Measured by Steakpedia · Steakpedia Field Kitchen
At a glance
- Cut
- Whole tenderloin, side muscle on (IMPS 189A), or its centre
- Weight
- 2.5–3 kg / 5.5–6.5 lb whole → about 1.8 kg / 4 lb trimmed
- Oven
- 220 °C / 425 °F, after searing
- Pull (medium-rare)
- 50–52 °C / 122–126 °F
- Per adult
- 200–250 g / 7–9 oz trimmed, raw
A lean muscle, cooked by thermometer
The tenderloin (fillet, eye fillet) is the psoas major, a long, tapering muscle that does almost no work and is therefore fine-grained and very tender. Roasted whole, it is a common main course for Christmas, New Year and, in the United States, an alternative to turkey at Thanksgiving. Its weakness is its leanness: with little fat to protect it, a few degrees too many turn it dry, so it is cooked by thermometer.
In French cookery the chateaubriand is a thick piece from the centre of the fillet, traditionally served for two; the same centre roasted in one piece is sold as a chateaubriand or centre-cut roast. The tenderloin wrapped in duxelles and pastry is beef Wellington.
Trimming: the chain, the tail and the silverskin
A whole tenderloin is sold untrimmed, with fat and the side muscle attached ("peeled, side muscle on", IMPS 189A), or fully trimmed. Field data weighed piece by piece put the usable share of a whole tenderloin at 72.2 % after trimming, but only 57 % when it is cut entirely into steaks of uniform size. The difference, about 15 points, is the chain (the narrow side muscle), the thin tail and irregular pieces: edible, but too thin or uneven for steaks.
Roasting the fillet whole, with the tail folded under and tied, keeps most of that difference on the platter. The chain, coarser and laced with fat and sinew, is better used for stir-fries, skewers or ground beef; a tail cut off instead of folded suits steak tartare or beef stroganoff. Allow 200–250 g / 7–9 oz of trimmed meat per adult; a whole untrimmed tenderloin therefore needs about 40 % more raw weight.
Ingredients
| Ingredient | Amount | Note |
|---|---|---|
| Whole beef tenderloin, side muscle on | 2.5–3 kg / 5.5–6.5 lb | or 1.8 kg / 4 lb trimmed centre and head |
| Coarse salt | 18 g / about 1½ tbsp | about 1 % of the trimmed weight |
| Black pepper | 6 g / 1 tbsp | coarsely ground |
| Neutral oil | 30 ml / 2 tbsp | for searing |
| Butter, garlic, thyme | 30 g / 1 oz, 3 cloves, 4 sprigs | optional, for basting |
| Shallots | 2, about 60 g / 2 oz | finely chopped, for the sauce |
| Brandy or cognac | 60 ml / ¼ cup | for the sauce |
| Beef stock | 250 ml / 1 cup | for the sauce |
| Dijon mustard | 15 g / 1 tbsp | for the sauce |
| Double (heavy) cream | 120 ml / ½ cup | optional, for the sauce |
| Kitchen twine | about 2 m / 6 ft | for tying |
Method
- Trim the tenderloin: cut away the surface fat, pull the chain off along its length and reserve it, then slide a thin knife under the silverskin and remove it in strips, angling the blade upward to lose as little meat as possible.
- Fold the thin tail under so the roast has an even thickness, or cut it off for another use. Tie the roast with twine every 2.5–4 cm / 1–1.5 in. Salt it on all sides; ideally the day before, left uncovered on a rack in the refrigerator, or at least 45 minutes ahead.
- Heat the oven to 220 °C / 425 °F. Pat the meat dry and season with pepper. Sear it in the oil in a large heavy pan over high heat, turning, until browned on all sides, 8–10 minutes in total; a roast too long for the pan can be cut in two. Add the butter, garlic and thyme in the last minute and baste.
- Move the roast to a rack in a roasting tin, insert a probe thermometer into the thickest part and roast until the centre reaches 50–52 °C / 122–126 °F for medium-rare, usually 25–40 minutes for a 1.8 kg / 4 lb trimmed roast.
- Rest the roast loosely covered for 15–20 minutes; the centre rises a further 3–5 °C / 5–8 °F. See resting.
- For the sauce, pour most of the fat from the searing pan, soften the shallots in it for 2 minutes, add the brandy off the heat, then the stock, and reduce by half. Whisk in the mustard and the cream and simmer until the sauce coats a spoon. Add the resting juices and season.
- Remove the twine and slice the roast into medallions 1.5–2.5 cm / ½–1 in thick. The narrow end gives more-done slices for guests who want them.
Temperatures
| Doneness | Pull from a 220 °C / 425 °F oven | After resting |
|---|---|---|
| Rare | 46–48 °C 115–118 °F | 50–52 °C 122–126 °F |
| Medium-rare | 50–52 °C 122–126 °F | 54–56 °C 129–133 °F |
| Medium | 55–57 °C 131–135 °F | 59–61 °C 138–142 °F |
| USDA safe minimum (whole cuts) | — | 63 °C 145 °F with a 3-minute rest |
Reverse sear, béarnaise or horseradish
In the reverse sear, the tied roast cooks at 120 °C / 250 °F to 48–50 °C / 118–122 °F, about 60–90 minutes, and is seared in a pan at the end; it gives an even pink with almost no grey band and needs little rest. Some cooks roll the seared fillet in cracked pepper or herbs, or wrap it in bacon for fat. Besides the pan sauce, it is served with béarnaise, a peppercorn sauce as in steak au poivre, horseradish cream or a red-wine reduction. Leftovers are served cold, thinly sliced, in salads and sandwiches.
Field data
Numbers measured in a working kitchen, piece by piece, not taken from a table. Another kitchen, another trimming specification, another number. How field data is collected.
Field data
Tenderloin
Steakpedia Field Kitchen1 Jul 2026 – 20 Oct 2026
Frequently asked questions
How much beef tenderloin per person?
200–250 g / 7–9 oz of trimmed raw meat per adult, so a 1.8 kg / 4 lb trimmed roast serves about eight. A whole untrimmed tenderloin loses roughly 28 % in trimming.
What temperature should beef tenderloin be cooked to?
Pull it at 50–52 °C / 122–126 °F in the centre for medium-rare; after resting it reaches 54–56 °C / 129–133 °F. The USDA safe minimum for whole cuts is 63 °C / 145 °F with a 3-minute rest.
How long does a beef tenderloin roast take at 425 °F?
After searing, a 1.8 kg / 4 lb trimmed tenderloin usually needs 25–40 minutes at 220 °C / 425 °F to reach medium-rare. The thermometer decides, not the clock.
Is beef tenderloin or prime rib better for Christmas or Thanksgiving?
It depends on the table. Tenderloin is leaner, milder, quicker to roast and easier to slice evenly; prime rib has more fat and flavour and takes several hours. See the Christmas beef roast guide.
Can a tenderloin roast be prepared ahead?
Yes. It can be trimmed, tied and salted a day ahead and kept uncovered in the refrigerator; it is seared and roasted shortly before serving.
Sources
4
- USDA Agricultural Marketing Service. Institutional Meat Purchase Specifications: Fresh Beef Series 100. Washington, DC, 2014. www.ams.usda.gov/sites/default/files/media/IMPS_100_Fresh_Beef%5B1%5D.pdf
- Larousse Gastronomique, rev. ed. London: Hamlyn, 2009.
- McGee, Harold. On Food and Cooking: The Science and Lore of the Kitchen, rev. ed. New York: Scribner, 2004.
- USDA Food Safety and Inspection Service. Safe Minimum Internal Temperature Chart. 2023. www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/safe-temperature-chart
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