Italian Ricotta Gnocchi with Confit Tomatoes, Stracciatella and Pistachios | Gnocchi di Ricotta con Pomodorini Confit, Stracciatella e Pistacchi
This is a plate assembled from three southern products that never needed a chef to make them good: sheep ricotta from the Murgia, stracciatella from Andria and pistachios from Bronte. The cooking is deliberately minimal. Tomatoes go into a low oven for two hours, ricotta becomes gnocchi, and the rest is temperature and timing.
The gnocchi are piped rather than rolled, which suits a sheep ricotta dough richer and softer than a cow milk one. They are cooked barely below a boil and turned through the perfumed oil the tomatoes gave up, never through a sauce of their own.
Stracciatella goes in cold, straight onto the warm bowl, and is never cooked. Pistachios arrive last, as a coarse crumb, so the plate finishes with something that crunches against three soft things.
Yield: 4 servings. Draining the ricotta: 4 hours. Confit: 2 hours. Prep: 40 minutes. Cook: 10 minutes. Difficulty: intermediate. Course: primo piatto. Region: Puglia, the Murgia and Andria, with Sicilian pistachio from Bronte.
The Story
Ricotta in Puglia is usually a sheep product, and that single fact changes everything downstream. The Murgia, the limestone tableland behind Bari and Altamura, is poor grazing for cattle and excellent for sheep, and its dairies have worked ewe milk for as long as anyone can document. Sheep whey is richer in fat and protein than cow whey, so the ricotta drawn from it is denser, sweeter and far more aromatic, with a faint lanolin edge. It also carries less free water, which is why a Pugliese cook drains it for hours rather than overnight.
Stracciatella is younger and more specific. It was created in Andria in the 1920s, when the Olivieri dairy began saving the ragged strands of pasta filata left over from shaping burrata and steeping them in cream. The name means little shreds. Burrata is the famous descendant, but stracciatella is the filling itself, sold in tubs across the province. It is milk, cream and salt, nothing else, and it is why this plate needs no butter and no cheese sauce.
The pistachio comes from further away, from the black lava soil on the western flank of Etna around Bronte, where the trees are harvested only in odd numbered years. Two seasons of growth give a kernel longer, greener and far more resinous than the Iranian or Californian nut. It arrived with Arab cultivation in the ninth century and stayed. Puglia and Bronte are 400 miles apart, but sweet tomato, sheep dairy and pistachio have shared the same market stalls for centuries.
Ingredients
For the confit tomatoes
Datterini or cherry tomatoes, halved lengthways, 1 lb 5 oz (600 g)
Extra virgin olive oil, Pugliese if possible, 1 cup (240 ml)
Garlic cloves, peeled and lightly crushed, 3
Fresh thyme sprigs, 4
Granulated sugar, 1 tsp (4 g)
Fine sea salt, 1 tsp (6 g)
For the gnocchi
Sheep milk ricotta, 1 lb 5 oz (600 g) before pressing, about 1 lb (455 g) after
All purpose flour, 1/2 cup (65 g), plus a little for the tray
Large whole egg, 1
Pecorino Romano, finely grated, 1 oz (30 g)
Fine sea salt, 1/2 tsp (3 g)
Finely grated lemon zest, from 1/2 lemon
Freshly ground white pepper, to taste
For finishing
Stracciatella di Andria, 7 oz (200 g), at room temperature
Bronte pistachios, shelled and unsalted, 2 1/2 oz (70 g)
Fresh basil leaves, small, 12
Coarse salt for the cooking water, 1 tbsp (18 g) per 4 quarts (3.8 L)
Flaky sea salt and black pepper, to finish
Preparation
Confit the tomatoes at a temperature that never fries them
Heat the oven to 250°F (120°C). Lay the halved tomatoes cut side up in one layer in a small dish, scatter over the salt, sugar, garlic and thyme, and pour in enough olive oil to come two thirds of the way up. Bake 2 hours. They should slump and wrinkle without taking colour, and the oil should never bubble hard enough to sizzle. Lift them out with a slotted spoon and keep the oil, which is now the sauce.
Toast the pistachios and make a coarse crumb
Spread the pistachios on a tray and give them 8 minutes at 250°F (120°C) alongside the tomatoes, no hotter, since Bronte kernels are prized for a green colour that a brisk oven browns away. Cool them, then chop by hand to a rubble of uneven pieces. A processor turns them to paste in three seconds, and the plate needs texture, not butter.
Press the sheep ricotta, then sieve it twice
Set the ricotta in a colander lined with muslin, cover it and rest a weighted plate on top. Four hours in the refrigerator is enough for sheep ricotta, which holds far less free water than a cow milk one. Expect to lose about 5 oz (140 g). Then push the curd through a fine sieve twice; the second pass is what separates a grainy gnoccho from a smooth one.
Bind the dough by volume, not by feel
Measure the sieved curd: you should have about 2 cups. The flour is a scant half cup to that volume, and the ratio holds however much ricotta you started with. Beat the egg with the Pecorino, salt, lemon zest and white pepper, stir it through the curd, then sift the flour over and fold it in. Sheep ricotta binds without extra yolks, so resist adding any.
Read the dough off the spatula
Lift the spatula out of the bowl. Correctly hydrated, the mixture falls back in a thick ribbon that holds its shape for two or three seconds before sinking. If it runs off in a stream, fold in 1 tbsp (8 g) more flour and read it again. If it sits in a lump, you have gone too far and only more ricotta will bring it back.
Pipe and cut instead of rolling
Scrape the dough into a piping bag with a 3/4 inch (2 cm) plain nozzle. Pipe straight onto a floured tray and cut every inch with a wet knife. A dough this soft cannot be rolled into ropes without extra flour, and extra flour is the one thing it must not have. Refrigerate the tray 20 minutes to firm the surfaces.
Bring the stracciatella and the bowls to the right temperature
Take the stracciatella out of the refrigerator 30 minutes ahead and loosen it with a fork. Cold it is tight, squeaky and tastes of almost nothing; at room temperature it runs and releases its cream. Warm the bowls at the same time, but only to hand hot, since a truly hot bowl cooks the dairy on contact.
Salt the water hard and hold it below a boil
Bring 4 quarts (3.8 L) of water to a boil, add 1 tbsp (18 g) of coarse salt and lower the heat until the surface only shivers, around 190°F (88°C). Season it more firmly than you would for filled pasta, since nothing else on the plate is salty except the Pecorino in the dough. A boil shreds the piped gnocchi before they set.
Cook, then turn them through the tomato oil
Warm 5 tbsp (75 ml) of the confit oil with the tomatoes in a wide pan over the lowest heat while the gnocchi cook. Slide them in in two batches; they need about 2 minutes from when they surface. Lift them with a spider, drain and add them to the pan, then swirl gently for 30 seconds until coated. Do not add cooking water: the oil is the sauce and water breaks it.
Plating
Build from the bottom up. Spoon a generous pool of loosened stracciatella into the base of each warm bowl and spread it with the back of the spoon. It belongs underneath, where the heat of the gnocchi softens it without cooking it, and it must be at room temperature first.
Arrange the coated gnocchi over the stracciatella in a loose single layer and tuck the confit tomatoes between them rather than on top. Spoon over a little more of the oil, which by now is deep orange and perfumed with garlic and thyme, and is where the colour of the dish comes from.
Scatter the pistachio crumb last, in a broad band rather than an even dusting, so some forkfuls carry it and some do not. Tear the basil over by hand, add flaky salt and black pepper, and send it. The stracciatella should still read cold at the first bite and be fully melted by the fourth.
Professional Technique
The technical heart of the dish is the confit, which is a cooking method rather than a garnish. Held at 250°F (120°C) the tomatoes never reach the temperature at which Maillard browning starts, so they lose water by slow evaporation while their sugars concentrate and their cell walls collapse. The olive oil is a heat transfer medium, not a frying medium: it keeps the temperature even and excludes air, which stops the surfaces drying into leather. Meanwhile it takes on the tomato's carotenoids, the garlic's sulphur compounds and the thyme's thymol, and ends up more valuable than the tomatoes.
The second technique is a dairy one: knowing which of these three cheeses takes heat and which does not. Pecorino is aged and its proteins already tightly bound, so it can be beaten into the dough and boiled without harm. Sheep ricotta is a whey cheese, coagulated by heat once already, and tolerates a gentle poach but not a rolling boil. Stracciatella is fresh pasta filata steeped in cream, and heat is fatal to it: above about 120°F (50°C) the strands seize and the cream separates. That is why it meets the dish only in the bowl.
Texture and Moisture Control
Four moisture levels have to be held apart on one plate. The tomatoes are concentrated and almost jammy, the gnocchi soft and wet inside, the stracciatella liquid cream around solid strands, the pistachio bone dry. Each degrades the moment it takes water from another, which is why the crumb goes on at the last second and the gnocchi are drained properly before they meet the pan.
Inside the gnocchi the control is fat rather than starch. Sheep ricotta runs to about 24 percent fat against roughly 13 in a cow milk one, and that fat coats the flour particles and limits how much gluten can form, which is why half a cup is enough and why the dough stays tender though barely worked. The same fat is why a piece holds at 190°F (88°C) and falls apart in a boil: there is very little protein structure, and it must be left to set undisturbed.
Professional Mise en Place
Almost everything here is done before service, and the last three minutes involve only the pot and the pan. The confit can be made two days ahead and improves in the meantime.
Equipment and tools
Small shallow dish that holds the tomatoes in one layer
Fine mesh sieve, muslin and a weighted plate for pressing
Piping bag with a 3/4 inch (2 cm) plain nozzle
Wide low pot for the gnocchi and a wide pan for the oil
Spider skimmer, a wet knife and a floured tray
Prepared ahead
Confit tomatoes and their oil, up to 2 days ahead, refrigerated
Pistachios toasted and chopped, up to 1 day ahead, in a sealed jar
Ricotta pressed and sieved twice, up to 1 day ahead
Gnocchi piped, cut and chilled on a floured tray, up to 2 hours ahead
Stracciatella out of the refrigerator 30 minutes before service
Service setup
Bowls warm to the hand, never hot, waiting in a row
Cooking water salted and shivering at 190°F (88°C)
Confit oil and tomatoes warming in the wide pan over the lowest heat
Pistachio crumb, basil and flaky salt lined up at the pass
Stracciatella loosened with a fork and ready to spoon
Chef Tips
Use datterini if you can get them. The small elongated southern tomato has thicker walls and more sugar than a round cherry, and it holds its shape through two hours of confit where a watery supermarket tomato collapses into skins and juice.
Keep the leftover confit oil. After the tomatoes are lifted out there is most of a cup of it, deeply perfumed and good for a fortnight in the refrigerator. It dresses a summer bread salad better than anything you could make on purpose.
If you cannot find stracciatella, buy burrata and tear it open, since the filling of a burrata is stracciatella by definition. Use the creamy interior exactly as described and keep the skin for something else. Never substitute plain mozzarella, which has no cream in it.
Salt the stracciatella lightly just before it goes into the bowl, never in advance. Salt draws liquid out of fresh dairy within minutes, and a tub seasoned early sits in a pool of thin whey by the time you need it.
Common Mistakes
Confiting at too high a temperature. Anything above 275°F (135°C) fries the tomatoes rather than drying them, the oil sizzles and the skins toughen. The point of a confit is two hours in which nothing dramatic happens, so use an oven thermometer if yours runs hot.
Putting the stracciatella on top. Spooned over the gnocchi it sits in the heat, seizes and weeps. Underneath, in a bowl that is only hand warm, it softens without ever cooking. This is not presentation, it is the difference between cream and curdled milk.
Rolling the dough into ropes. A sheep ricotta dough is too soft for a board, and every dusting of flour used to make it behave ends up in the gnoccho. Pipe it instead, cut with a wet knife, and accept that the pieces will not be identical.
Chopping the pistachios in a machine. Their oil content is high enough that a processor takes them from whole to paste almost instantly, and the crumb becomes a damp sludge that adds only weight. Chop by hand and stop while the pieces are uneven.
Adding cooking water to the pan. The reflex from other pasta dishes is wrong here. There is no cheese to emulsify and no starch worth speaking of, so water breaks the oil and leaves a thin puddle instead of a glossy coating.
Wine Pairing
Locorotondo DOC: The wine of the Valle d'Itria, made half an hour from Andria and the obvious local answer. Built on Verdeca and Bianco d'Alessano, it is pale, dry and low in aromatics, with an almond bitterness on the finish that lines up with the pistachio. Its restraint is the point: nothing in it argues with fresh dairy.
Grillo Sicilia DOC: The Sicilian half of the plate, and a wine with enough body to handle the confit oil. Grillo grown inland keeps a firm citrus acidity under ripe stone fruit, with a saline, nutty finish that reads as a continuation of the toasted pistachio rather than a contrast.
Etna Bianco DOC: Carricante from the same volcano as the pistachios, and the most precise match on the list. It is bone dry, high in acidity and unmistakably mineral, and that cut is what a plate carrying this much oil and cream needs. A few years in bottle bring a smoky note that suits the confit.
Cerasuolo di Vittoria DOCG: A light red for anyone who wants one, and the only Sicilian DOCG. The Frappato gives red cherry and a floral lift that echoes the sweetness of the confit tomato, while the Nero d'Avola supplies just enough grip. Serve it at 57°F (14°C) and it stays refreshing.
Salice Salentino DOC: The Negroamaro red of the Salento, and the choice when the tomatoes have gone deep and jammy. Look for a young unoaked bottling, which keeps a bitter almond twist and dark plum fruit without the tannin that would clash with the stracciatella. Served cool it works, at room temperature it flattens the dairy.
Storage & Reheating
The components keep well separately and the assembled plate does not keep at all. Confit tomatoes stay 2 days refrigerated under their oil, or a week if the jar is topped up so nothing is exposed, and they freeze for 2 months. The pistachio crumb keeps a week in a sealed jar. Stracciatella must be used within 2 days of opening and cannot be frozen, since the cream separates and the strands go stringy.
Uncooked gnocchi keep 2 hours on their floured tray in the refrigerator and no longer, since the flour keeps drawing moisture from the curd. To hold them further, freeze them solid on the tray for an hour, bag them for up to 1 month and cook from frozen with an extra 45 seconds. Cooked ones do not freeze.
Dressed gnocchi keep 1 day in a sealed container without the stracciatella. Warm them in a covered pan over very low heat with a spoonful of the confit oil, shaking rather than stirring, about 2 minutes, then add fresh stracciatella and pistachio at the table. A microwave melts the dairy into a grey pool.
Nutrition
Per serving, based on 4 servings as a primo:
Calories: 720 kcal
Total Fat: 52 g
Saturated Fat: 19 g
Trans Fat: 0 g
Unsaturated Fat: 31 g
Cholesterol: 120 mg
Sodium: 820 mg
Total Carbohydrates: 32 g
Fiber: 4 g
Total Sugars: 9 g
Added Sugars: 1 g
Protein: 27 g
Lactose: 5 g
Principal micronutrients: calcium, potassium, vitamin E, vitamin A, lycopene, phosphorus, magnesium
These figures are estimates. Only part of the confit oil reaches the plate, so the real fat figure depends on how generously the pan is spooned out.
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