Italian Cannonau Braised Lamb Shank with Pecorino Polenta | Stinco di Agnello al Cannonau con Polenta al Pecorino
A lamb shank is the hardest working muscle on the animal, laced with collagen and tough under any short cooking method. Given four hours of wet heat below a simmer, that collagen turns to gelatin and the meat slides off the bone under a spoon. The braising liquid inherits all of it, which is why the sauce needs no flour, no starch and no cream: it thickens on gelatin alone.
Cannonau does two things in the pot. Its tannin helps break down connective tissue over a long cook, and its dark cherry and dried herb character survives reduction in a way lighter reds do not. A full bottle goes in and comes out four hours later as a concentrated, faintly bitter base that the sweetness of caramelized soffritto rounds off. The polenta underneath is a northern technique carrying a Sardinian flavour: Pecorino Sardo DOP is sharper and saltier than Parmigiano and made from sheep milk, the same animal as the shank, which is why it belongs here in a way no cow milk cheese would.
Yield: 4 servings. Prep: 30 minutes. Cook: 4 hours 30 minutes. Rest: 15 minutes. Total: about 5 hours 15 minutes. Difficulty: intermediate. Course: primo piatto or piatto unico. Region: Sardinia, the Barbagia and the Ogliastra.
The Story
Cannonau is the Sardinian name for Grenache, and the island argues, with some archaeological support from grape seeds found at Nuragic sites near Cabras, that the variety was there long before Spanish rule brought Garnacha across. The DOC covers the whole island, but its heartland is the Barbagia around Oliena and Mamoiada and the Ogliastra around Jerzu, mountain country where the vines sit high and the wine comes out dark, alcoholic and dry with a resinous edge from the surrounding macchia.
Those same mountains are sheep country. Sardinia holds roughly half of all the sheep in Italy, and lamb is not an occasional dish there but the centre of the festive table, cooked on a spit over juniper wood or stewed slowly with wild fennel and myrtle when the cut was tougher. A shank is exactly that kind of cut: cheap, sinewy and useless in a hurry, which is why shepherd cooking treats it with time instead of heat.
Polenta, in all honesty, is not Sardinian. It belongs to Veneto, Lombardy and Friuli, and the island's own starch traditions run to semolina, fregola and pane carasau. What makes the pairing legitimate is the cheese: enriching polenta with aged Pecorino Sardo DOP instead of the usual Parmigiano shifts the whole base onto sheep milk and brings it into line with the meat. Call it what it is, a modern crossover built on a real flavour logic.
Ingredients
For the lamb shanks
Lamb shanks, 4, about 14 oz (400 g) each
Kosher salt, 2 tsp (12 g)
Freshly ground black pepper, 1 tsp
Extra virgin olive oil, 3 tbsp (45 ml)
For the braise
Yellow onions, diced, 2 medium, 10 oz (285 g)
Carrots, diced, 2 medium, 6 oz (170 g)
Celery stalks, diced, 2, 4 oz (115 g)
Garlic cloves, crushed, 6
Tomato paste, 2 tbsp (32 g)
Cannonau di Sardegna DOC, 1 bottle, 25 fl oz (750 ml)
Lamb or beef stock, unsalted, 2 1/2 cups (600 ml)
Rosemary sprigs, 4
Thyme sprigs, 6
Bay leaves, 2
Dried myrtle berries or juniper berries, 6, optional
For the pecorino polenta
Coarse Italian yellow polenta, 1 1/2 cups (250 g)
Water, 6 cups (1.4 liters)
Whole milk, 1 cup (240 ml)
Kosher salt, 2 tsp (12 g)
Unsalted butter, cold, 3 tbsp (42 g)
Pecorino Sardo DOP, aged, finely grated, 1 cup (100 g)
For the rosemary jus
Strained braising liquid, all of it
Rosemary sprig, fresh, 1
Unsalted butter, cold and cubed, 1 tbsp (14 g)
Red wine vinegar, 1 tsp (5 ml), to correct if needed
For finishing
Pecorino Sardo shavings, 1 oz (28 g)
Rosemary leaves, picked, 1 tsp
Sardinian extra virgin olive oil, 1 tbsp (15 ml)
Flaky sea salt and cracked black pepper, to taste
Preparation
Salt and dry the shanks
Season the shanks all over with the salt and pepper and leave them uncovered on a rack in the refrigerator for at least 4 hours, ideally overnight. The salt draws moisture out and then carries it back into the muscle, seasoning it through rather than only on the surface, while the air dries the outside. Pat them dry again before they meet the pan, because a damp shank will not brown.
Sear the shanks
Heat the olive oil in a heavy casserole over medium high heat until it shimmers. Lay in two shanks at a time, never four, and leave each face alone for 3 to 4 minutes until it is genuinely dark rather than merely tan. Turn and repeat on every side, about 12 minutes a pair, then lift them onto a tray. Crowding the pot drops the temperature and the shanks stew in their own liquid.
Build the soffritto
Pour off all but about 2 tablespoons of the fat, drop the heat to medium and add the onion, carrot and celery with a pinch of salt. Cook for 12 to 15 minutes until they are soft and colouring at the edges, scraping the browned residue off the base as they release their water. Add the garlic for the last 2 minutes, then the tomato paste, and cook it 2 minutes more until it darkens from red to brick and smells sweet rather than raw.
Deglaze with the Cannonau
Pour in the entire bottle, raise the heat and scrape the base clean. Bring it to a boil and reduce by roughly half, about 15 minutes, which drives off the alcohol and concentrates the fruit. Taste it: it should be intense and slightly bitter, not sour. Reducing a young tannic red too far makes it astringent, so stop at half rather than pushing for a glaze.
Braise low and slow
Return the shanks and their juices to the pot with the stock, rosemary, thyme, bay and the myrtle or juniper. The liquid should come about two thirds up the shanks and no higher. Bring it to a bare simmer, cover tightly and move it to an oven at 300°F (150°C) for 4 to 4 1/2 hours, turning the shanks once halfway. They are ready when a fork twists with no resistance and the bone moves freely.
Cook the polenta
Bring the water and milk to a boil with the salt, then pour the polenta in a thin steady stream while whisking hard so no lumps form. As soon as it thickens, drop the heat to its lowest setting and switch to a wooden spoon. Cook for 45 to 50 minutes, stirring every few minutes and scraping the corners, until no graininess is left on the tongue. Add hot water a ladle at a time if it stiffens before it is cooked through.
Reduce and finish the jus
Lift the shanks onto a warm tray and cover them loosely. Strain the braising liquid through a fine mesh sieve, pressing the vegetables firmly, then skim the fat off the surface. Reduce it over medium heat with one fresh rosemary sprig until it coats the back of a spoon, about 15 minutes, pulling the rosemary out before it turns medicinal. Off the heat, swirl in the cold butter for shine, and correct with the teaspoon of vinegar if the sauce tastes flat.
Mantecare the polenta
Take the polenta off the heat and let it stand a minute until it stops bubbling. Beat in the cold butter first, then the grated Pecorino Sardo in two additions, working quickly until the polenta is glossy and slack enough to fall from the spoon in a ribbon. Cheese added over direct heat turns stringy and forces out its fat. Taste for salt last, since aged pecorino carries a great deal of it.
Rest and glaze the shanks
Rest the shanks for 10 to 15 minutes, which lets the gelatin set slightly so the meat holds together on the way to the plate. Then spoon a little of the finished jus over each one and turn it so the surface takes on a glaze, basting in a warm pan over the lowest heat rather than cooking it further.
Plating
Use wide shallow bowls and warm them to about 160°F (70°C). This is a hot dish with a starch base that stiffens fast, and a cold bowl sets the polenta into a skin within a minute.
Spoon a generous bed of polenta into the centre and spread it with the back of the spoon into a shallow disc rather than a mound, so the jus gathers instead of running to the rim. Stand one shank on top with the bone angled upward, which reads better than laying it flat and lets a guest take the meat off with a spoon.
Nap the shank with the jus and let the rest fall onto the polenta around it, no more than 3 tablespoons a plate. Finish with a few shavings of Pecorino Sardo, picked rosemary leaves, cracked black pepper and a thread of Sardinian olive oil around the edge. Serve immediately: polenta waits for nobody.
Professional Technique
The whole dish turns on collagen conversion. Lamb shank is dense with type I collagen, which begins to hydrolyze into gelatin at around 160°F (70°C) and needs several hours there to finish the job. Push the oven higher and the muscle fibres contract and squeeze out moisture faster than the collagen can soften, which is how a shank ends up dry and stringy in spite of sitting in liquid. An oven at 300°F (150°C) holds the pot just below a simmer, and a tight lid keeps the humidity high so the exposed top does not dry.
The second technique is using wine as both flavour and tenderizer. Cannonau is high in alcohol and moderately tannic, and both matter: alcohol extracts aroma compounds from the aromatics and the meat, and tannins bind to proteins and assist the breakdown of connective tissue. Reducing it by half before the stock goes in is not optional, because unreduced wine leaves a raw alcoholic edge that a covered braise cannot drive off.
The third is thickening the sauce without any thickener. A properly braised shank releases enough gelatin that a straight reduction sets to a coating consistency on its own, with a texture no flour or cornstarch imitates. It only works if the liquid is strained and defatted first, since suspended fat breaks out as the sauce concentrates, and if the reduction stops while the sauce still moves, because gelatin keeps setting as it cools.
Texture and Moisture Control
Polenta is the component most likely to fail, and its texture is a matter of hydration and time. Coarse Italian polenta needs 45 to 50 minutes to fully gelatinize its starch, and there is no shortcut: undercooked polenta tastes gritty however smooth it looks. Keep hot water beside the pot and add it a ladle at a time whenever the mass stiffens before the grain is cooked, since cold water shocks the starch and leaves lumps.
The mantecatura at the end is what makes it creamy, and it happens off the heat for a reason. Pecorino is a hard sheep milk cheese high in fat and protein, and stirred into polenta that is still bubbling it seizes into strings and releases oil. Beaten into polenta that has stopped simmering, it melts smoothly and holds. The butter goes in first, cold, so it emulsifies rather than melting out.
For the meat, the enemies are fast cooling and a thin sauce. Rest the shanks covered and warm, not in the refrigerator, and hold them no longer than 30 minutes. The jus should coat a spoon while hot and sets noticeably firmer as it cools, so judge it a little looser than you want it, and if it goes too far add hot stock rather than water.
Professional Mise en Place
A long cook and a short finish make this good restaurant food: almost everything improves overnight and only the polenta is genuinely last minute.
Equipment and tools
Heavy casserole or Dutch oven with a tight lid, large enough for four shanks
Fine mesh sieve and a ladle for skimming fat
Wide heavy saucepan and a wooden spoon for the polenta
Instant read thermometer, warm tray for resting, warm bowls
Prepared ahead
Shanks salted and air dried on a rack, overnight
Soffritto diced and held covered, up to 1 day
The whole braise cooked, cooled and refrigerated, up to 3 days, which improves it
Braising liquid strained and the set fat lifted off cold, far easier than skimming hot
Pecorino grated and shavings cut, the day of service
Service setup
Shanks rewarmed in a little of their jus, covered, in a low oven
Jus reducing in a small pan with the butter cold and ready
Polenta started 50 minutes before service, hot water beside it
Bowls warm at 160°F (70°C) and the garnishes within reach
Chef Tips
Cook the braise a day ahead. The meat reabsorbs liquid overnight and tastes deeper, and the fat sets in a solid layer on the cold pot that lifts off in one piece, far more thorough than skimming a hot sauce.
Use a Cannonau you would drink, but not an expensive one. The delicate fruit of a fine bottle is destroyed by four hours in an oven. What you must not do is substitute cooking wine, which is salted and will ruin the seasoning of a sauce you then reduce.
Ask the butcher to leave the shanks whole and untrimmed of the silverskin at the top. That sheath holds the muscle on the bone through a long braise and turns soft by the end, while shanks trimmed bare fall apart in the pot and arrive as a pile of meat rather than a shank.
Taste the polenta for salt only after the pecorino goes in. Aged Pecorino Sardo is salty and the jus is a reduction, so a polenta seasoned to taste good alone will push the finished plate over the edge. Season it slightly under and let the other components bring the rest.
Common Mistakes
Braising too hot. Above a gentle simmer the muscle fibres contract and force out moisture faster than the collagen converts, so the shank turns dry and stringy in spite of sitting in liquid. Hold the oven at 300°F (150°C) and check that the surface is barely moving.
Crowding the pot during the sear. Four shanks at once drop the pan temperature and steam instead of browning, and the sauce loses the Maillard foundation it is built on. Sear two at a time and give each face the full 3 to 4 minutes.
Adding the stock before the wine has reduced. Unreduced wine leaves a raw alcoholic bite that a covered braise cannot drive off, since the lid keeps returning the vapour to the pot. Reduce the bottle by half in the open pot first.
Covering the shanks completely with liquid. That is boiling, not braising, and it dilutes the sauce into something thin that needs heavy reduction later. The liquid should come about two thirds of the way up.
Stirring the pecorino into simmering polenta. The cheese seizes into strings and releases its oil, leaving a greasy, stringy base instead of a creamy one. Take the pot off the heat, let it stop bubbling, beat in the cold butter and only then the cheese.
Wine Pairing
Cannonau di Sardegna DOC: The obvious choice and the correct one, since the same wine is in the pot and the sauce recognises it in the glass. Its moderate tannin and dried herb character line up with the rosemary and the myrtle, while alcoholic warmth and dark cherry fruit stand against the fat of the shank and the salt of the pecorino.
Aglianico del Vulture Superiore DOCG: A southern alternative with far more grip. Aglianico brings firm tannin and high acidity from volcanic soils, and both cut through a gelatin rich sauce in a way a softer red cannot. Give it age or an hour in a decanter, because a young bottle fights the dish rather than supporting it.
Barbaresco DOCG: The elegant option when the plate is finished carefully rather than rustically. Nebbiolo tannin is fine and drying, resetting the palate after each mouthful of fat, and its tar, rose and dried cherry aromatics sit beautifully against rosemary.
Taurasi DOCG: Campania at full power, and the bottle for a shank braised very dark. Its structure and smoky mineral depth handle the concentrated reduction, while acidity high enough to keep the plate from feeling heavy carries the salt of the pecorino polenta.
Montefalco Sagrantino DOCG: The most tannic red in Italy and a deliberate choice for the richest version of this dish. Its enormous polyphenol load binds to the fat and gelatin and softens dramatically against them, with blackberry and a bitter herbal edge that answers the rosemary. Pour only a mature bottle.
Storage & Reheating
The braise keeps beautifully. Cool the shanks in their unstrained liquid and refrigerate them together in a sealed container for up to 3 days, and they will taste better on the second day than the first. Freeze them in that liquid for up to 3 months in a rigid container, leaving headroom, and thaw overnight in the refrigerator.
Reheat the shanks in their liquid, covered, in a 300°F (150°C) oven for 30 to 40 minutes, or on the stove over the lowest heat. Do not reheat them dry and do not use a microwave, which tightens the outer meat before the centre is warm. Strain and reduce the jus after reheating, not before.
Polenta does not keep as polenta. It sets firm in the refrigerator within hours and will not return to a creamy state, so make it fresh. The traditional answer for leftovers is to pour it into an oiled tray, chill it until firm, cut it into fingers and grill or pan fry them.
Nutrition
Per serving, based on 4 servings of one shank with polenta and jus:
Calories: 890 kcal
Total Fat: 44 g
Saturated Fat: 19 g
Trans Fat: 0 g
Unsaturated Fat: 23 g
Cholesterol: 205 mg
Sodium: 1150 mg
Total Carbohydrates: 58 g
Fiber: 4 g
Total Sugars: 6 g
Added Sugars: 0 g
Protein: 62 g
Lactose: 3.1 g
Principal micronutrients: iron, zinc, vitamin B12, niacin, selenium, calcium, phosphorus
These figures are estimates. Much of the rendered fat is discarded with the skimming, and the sodium depends on how salty the pecorino is and how far the jus is reduced.
Comments