Beef Tenderloin with Pecorino Cream, Black Truffle and Cannonau Jus | Filetto di Manzo con Crema di Pecorino, Tartufo Nero e Jus al Cannonau

Sep 28

11 min read

Filetto di Manzo con Crema di Pecorino, Tartufo Nero e Jus al Cannonau (Beef Tenderloin with Pecorino Cream, Black Truffle and Cannonau Jus)

This plate rests on one uncomfortable fact: pecorino is not a sauce cheese. It is saltier and fattier than Parmigiano, built to be grated over other things or eaten in a wedge, and the moment you treat it like a fondue cheese it turns on you. Handled correctly it gives beef a savoury weight no cream sauce can reach, and it does so without a grain of added salt anywhere in the dish.

Around that cream sit two more Sardinian ideas: a jus built on roasted beef bones and reduced with Cannonau, which brings dried herb and warm fruit instead of the tight tannic edge a Piedmontese red would leave, and black truffle warmed in butter and shaved over the meat at the last second, possible only because black truffle survives heat where white truffle vanishes. The beef is the quietest element here, deliberately. A tied filet medallion is lean, fine grained and almost neutral, a support rather than a protagonist.

Yield: 4 servings. Prep: 45 minutes. Cook: 2 hours for the jus, 12 minutes for the meat. Rest: 8 minutes. Total: about 3 hours. Difficulty: advanced. Course: secondo. Region: Sardinia, read through contemporary restaurant cooking.

The Story

Two pecorini stand behind this dish and they are not interchangeable. Pecorino Romano DOP, despite the name, is made overwhelmingly in Sardinia rather than Lazio, dry salted over weeks and matured hard, sharp and ferociously saline. Pecorino Sardo DOP is the island's own, sold either as dolce, young and mild, or as maturo, aged past two months into something firm, nutty and dry. The cream wants maturo for depth with a smaller share of Romano for the salt edge.

Behind both is the oldest economy on the island. Sardinia keeps roughly three million sheep, more sheep than people, and its interior has been organised around them for millennia: summer and winter pastures, the long walks between them, the shepherd's day measured in milk. The saltiness that makes pecorino difficult in a sauce is not a stylistic choice, it is preservation written into the cheese.

The Cannonau comes from the same landscape. It is Grenache, grown across Nuoro, the Ogliastra and Jerzu, ripened to real warmth and carrying dried herb and wild scrub rather than fresh berry. Black truffle grows on the island too, the summer scorzone in the oak woods of the Barbagia, and black is the variety that tolerates a little heat. The filet is not Sardinian in any traditional sense, and that should be said plainly: no shepherd ever ate tenderloin. This is contemporary cooking borrowing a pastoral pantry, and it holds together because cheese, wine and truffle come from the same hills.

Ingredients

For the beef

Beef tenderloin, centre cut, 1 1/2 lb (680 g), in 4 medallions
Butcher's twine, 4 lengths of about 12 in (30 cm)
Fine sea salt, 1/2 tsp (3 g), for the meat only
Freshly ground black pepper, to taste
Grapeseed oil or other neutral oil, 2 tbsp (30 ml)
Unsalted butter, 3 tbsp (42 g)
Garlic clove, lightly crushed, 1
Rosemary sprig, 1
Thyme sprigs, 2

For the pecorino cream

Pecorino Sardo maturo, grated very fine, 3 oz (85 g)
Pecorino Romano DOP, grated very fine, 1 oz (28 g)
Heavy cream, 2/3 cup (160 ml)
Whole milk, 1/3 cup (80 ml)
Cornstarch, 1 tsp (3 g)
Freshly ground white pepper, to taste
No salt, none at all

For the Cannonau jus

Beef bones, cut small, 2 lb (900 g)
Beef trimmings from the tenderloin, 4 oz (115 g)
Yellow onion, roughly chopped, 1
Carrot, roughly chopped, 1
Celery stalk, roughly chopped, 1
Tomato paste, 1 tbsp (16 g)
Cannonau di Sardegna, 1 1/2 cups (360 ml)
Water or unsalted beef stock, 4 cups (950 ml)
Bay leaf, 1
Black peppercorns, 6
Unsalted butter, cold, 1 tbsp (14 g), for finishing

For the truffle

Fresh black truffle, 3/4 oz (20 g)
Unsalted butter, 1 tbsp (14 g)
A stiff brush and a truffle slicer or a very sharp mandoline

For finishing

Extra virgin olive oil, a few drops per plate
Flaky salt, for the table only and only if a guest asks
Freshly ground black pepper, to taste

Preparation

Step 1

Roast the bones and vegetables. Heat the oven to 450°F (230°C). Spread the bones and the tenderloin trimmings in one layer in a roasting tray and roast for 35 to 40 minutes, turning once, until deeply coloured but nowhere near black. Add the onion, carrot and celery for the last 12 minutes, then stir in the tomato paste and give it 3 minutes more so it loses its raw metallic note.

Step 2

Deglaze, simmer and skim. Tip everything into a tall saucepan. Set the tray over a burner, pour in the Cannonau and scrape every stuck fragment loose as it bubbles, then add that liquid to the pan with the water or unsalted stock, the bay leaf and the peppercorns. Hold it at the barest simmer for 90 minutes without a lid, skimming the grey foam for the first 10 minutes. Never let it boil: a rolling boil emulsifies the fat and the jus turns cloudy.

Step 3

Strain and finish the jus. Pass the liquid through a fine mesh sieve into a clean pan, pressing nothing through. Reduce over medium heat to about 3/4 cup (180 ml), until the surface is glossy and slightly syrupy. Leave it completely unsalted: the pecorino cream is about to bring more salt to the plate than either element could carry alone. Off the heat, whisk in the cold butter for shine and hold it warm.

Step 4

Trim and tie the medallions. Trim the tenderloin of silverskin and cut four medallions of about 6 oz (170 g), all the same thickness, roughly 1 1/2 in (4 cm). Thickness matters more than weight: a thick medallion takes a hard crust and still keeps a red centre, a thin one cannot. Tie twine around the circumference of each and pull it snug, so the medallion holds a tall even cylinder instead of slumping into a flat disc.

Step 5

Temper the meat and dry it. Take the medallions out of the refrigerator 45 minutes before cooking and leave them uncovered on a rack at room temperature. Fifteen minutes before the pan, pat every surface dry and season with the salt and pepper. Cold meat needs longer to reach the centre, which leaves a thick grey band under the crust, and a wet surface cannot brown at all: the pan spends its heat evaporating water.

Step 6

Sear in iron. Heat a cast iron pan over high heat until a drop of water skitters and vanishes, then add the neutral oil. Lay the medallions in with space between them and do not move them for 2 1/2 to 3 minutes. Turn, give the second side the same, then stand each one on its edge for 30 seconds a side to colour the rim.

Step 7

Baste with butter and aromatics. Lower the heat to medium, add the butter, the crushed garlic, the rosemary and the thyme, and tilt the pan so the foaming butter pools at the near edge. Spoon it over the medallions continuously for 60 to 90 seconds. This is gentle directed heat that finishes the meat and carries herb and garlic onto the crust.

Step 8

Read the temperature and rest. Push an instant read thermometer into the side of a medallion, into the middle, not down through the top. Pull at 122°F (50°C) for rare, 128°F (53°C) for medium rare and 136°F (58°C) for medium, remembering each climbs about 5°F (3°C) while resting. Rest on a wire rack, not a plate, for 8 minutes.

Step 9

Make the cream and warm the truffle. Warm the cream and the milk with the cornstarch to about 160°F (71°C), then take the pan off the burner and let it fall to 149°F (65°C). Add the grated pecorino in three handfuls, stirring in one direction, waiting until each melts before the next goes in. Pass the finished cream through a fine mesh sieve into a warm jug and hold it over hot water, never back on the flame. Brush the truffle clean, dry it, melt the butter, take it off the heat and turn the truffle in it for 30 seconds before slicing.

Plating

Warm four plates to about 140°F (60°C), no hotter. A cold plate stiffens the cream on contact, a scorching one pushes the pecorino past the point where it stays smooth. Spoon three tablespoons of cream onto each plate and spread it into a shallow disc a little wider than the medallion.

The cream goes underneath, always: poured over the meat it would hide the crust, soften it and wipe out the contrast the searing was for. Snip off the twine, set the medallion on the cream, spoon the jus in a narrow ring around the outside, then shave the warm truffle over the meat at the table. A few drops of olive oil, a turn of pepper, and nothing else on the plate.

Professional Technique

Everything technical here sits in one place: the pecorino cream, and the two ways pecorino punishes carelessness. The first is salt. Pecorino Romano carries several times the salt of Parmigiano Reggiano and Sardo maturo is not far behind, so in a sauce the cheese becomes the seasoning for the whole plate. The jus goes in unsalted, the cream takes no salt whatsoever, the beef only the light seasoning it needs for a crust. Season each component to taste in isolation and the assembled dish is inedible. Salt is calculated backwards here, from the cheese.

The second is the filatura, the stringing. Pecorino is a sheep milk cheese, high in fat, with a casein structure very different from the long aged granular paste of Parmigiano. Over direct heat those caseins contract and knit together, the fat and the water are squeezed out, and within seconds there is a rubbery elastic mass in the pan with a pool of whey beside it. Nothing brings it back. Prevention is entirely temperature and contact: a warm liquid and never a boiling one, the pan off the flame or over a bain marie, the cheese ground to powder so it melts on contact instead of clumping, and the sauce held below 149°F (65°C) from the first handful to service. The temperature is the technique.

Texture and Moisture Control

The filet is lean, with little intramuscular fat and almost no collagen, so none of the braising logic applies: there is nothing to convert into gelatin and nothing to gain from time. The flavour of the surface is Maillard on a dry crust, and the juiciness comes from stopping early. Residual heat travels inwards during the rest and adds several degrees, which is why 128°F (53°C) off the pan reads as medium rare at the table rather than underdone.

Resting is part of the cooking, not a pause. Fibres contracted by heat hold the juices under pressure, and cutting straight away puts them on the board. Eight minutes on a rack lets them relax and reabsorb, and the rack matters because a medallion on a plate sits in its own steam and loses the crust it earned. On the sauce side the discipline is inverted: the cream stays loose enough to spread but thick enough to hold the medallion, and the jus is reduced to a coat rather than a syrup.

Professional Mise en Place

Equipment and tools

Cast iron or heavy carbon steel pan, 12 in (30 cm)
Instant read thermometer
Fine mesh sieve and a small ladle
Bain marie, or a saucepan set over a wider pan of hot water
Truffle slicer or mandoline, and a stiff brush
Wire rack, butcher's twine, warm jug for the cream

Prepared ahead

The jus can be made a day ahead and reduced to its final volume on the day. The medallions can be trimmed and tied in the morning and left uncovered on a rack in the refrigerator, where the surface dries and sears better for it.

Service setup

The cream is made last, within 15 minutes of service, and held in a warm jug over hot water. Plates go in a low oven. Order at the pass: plates warm, cream sieved and holding, jus warm beside it, then the sear, then the rest, and the truffle shaved once the plate is in front of the guest.

Chef Tips

Grate both cheeses on the finest rasp you own, not a box grater. Powder dissolves on contact, while shreds clump and tempt you to raise the heat, which is how the sauce breaks.
Taste the jus and the cream together on one spoon before plating. That combined taste is the dish, and it is the only reliable check that the salt is right.
Keep the twine on until the medallion is on the plate. It holds the shape through the sear, the baste and the rest, and comes off in a second with scissors.
Save the herb butter from the pan. Strained into a jar it keeps a week in the refrigerator and is outstanding on roast potatoes.

Common Mistakes

Melting the pecorino over direct heat.The caseins tighten, the fat separates and you are left with a rubbery lump in a puddle of whey. There is no repair. Off the heat or over a bain marie, below 149°F (65°C), always.

Salting the components separately.Each tastes correct alone and the assembled plate is a salt bomb. The pecorino is the seasoning: none in the cream, none in the jus, a light hand on the meat.

Searing cold or damp meat.A grey overcooked band forms under the crust, and a damp surface makes the pan boil water instead of browning.

Slicing the truffle early or cooking it hard.Black truffle takes gentle warmth, which is why the butter comes off the heat first, and its aroma is gone minutes after slicing. Shave it over the plate, never into the pan.

Wine Pairing

Cannonau di Sardegna DOC: The wine already in the jus, worth pouring alongside so plate and glass rhyme. Its soft rounded tannin does not fight the salt of the pecorino, and the dried herb and scrub notes pick up the truffle rather than covering it. Choose an unoaked bottling over a heavily wooded riserva and serve it at 62°F (17°C).

Alghero DOC: From the northwest corner of the island, firmer and darker than Cannonau, with plum and a real tannic frame. That tannin is the point: it scours the butter fat and the sheep milk fat off the palate between mouthfuls, which a softer wine cannot do.

Campidano di Terralba DOC: Bovale from the plain south of Oristano, lighter in body and higher in acidity than the two above. Pick it if the richness of the cream worries you, because that acidity cuts through and resets the palate.

Etna Rosso DOC: Nerello Mascalese off the volcano, pale and nervy, with fine sandy tannin and a smoky mineral undertow. The earthy register meets the black truffle almost directly, and the acidity handles the salinity of the cheese without turning thin. The most elegant match here and the least obvious.

Aglianico del Vulture Superiore DOCG: For a table that wants power: tannic grip, dark iron and smoke, and a long dry finish that suits a heavily reduced jus and beef taken to the middle. Give it half an hour in a decanter, otherwise the tannin arrives before the fruit.

Storage & Reheating

Store the components separately and never the assembled plate. The jus keeps refrigerated in a sealed container for 4 days and freezes for 3 months, and it is the one element that improves on standing. The cream keeps 2 days in an airtight jar and must not be frozen, since the emulsion breaks irreversibly on thawing. Fresh truffle keeps 4 to 5 days wrapped in paper in a closed jar, with the paper changed daily.

Cooked tenderloin is best the day it is cooked and reheating is a compromise. The least damaging method: 20 minutes at room temperature, then 6 to 8 minutes in a 250°F (120°C) oven, just to about 120°F (49°C) at the centre, never in a hot pan. Rewarm the cream over a bain marie only and stop the moment it flows. The jus can return to a simmer and take a knob of cold butter for shine.

Nutrition

Per serving, based on 4 servings:

Calories: 720 kcal
Total Fat: 52 g
Saturated Fat: 27 g
Trans Fat: 1.1 g
Unsaturated Fat: 22 g
Cholesterol: 195 mg
Sodium: 980 mg
Total Carbohydrates: 6 g
Fiber: 0 g
Total Sugars: 3 g
Added Sugars: 0 g
Protein: 46 g
Lactose: 2.8 g
Principal micronutrients: calcium, phosphorus, zinc, iron, vitamin B12, selenium, riboflavin