Vicenza Style Stockfish with Milk and Onions | Baccalà alla Vicentina

Sep 28

11 min read

Bacala alla Vicentina (Vicenza Style Stockfish with Milk and Onions)

There is a dish in the province of Vicenza governed by a written statute and defended by a brotherhood with a president and an annual banquet. It is made of a dried fish caught two thousand miles away, onions, a litre of milk and a litre of olive oil, and it cooks four or five hours while the cook does nothing. Almost everything that goes wrong with it goes wrong because somebody picked up a spoon.

The name needs correcting first. Baccala, everywhere else in Italy, means cod preserved in salt. What goes into this casserole is stoccafisso, cod dried by Arctic wind on wooden racks, with no salt at all. Veneto calls it bacala anyway, with a single c, and has done so for five centuries: a habit of the port of Venice, where both arrived on the same ships and one market word swallowed the other.

Everything else follows from that ingredient. Stockfish is rebuilt across days of soaking, then handled with a gentleness no fresh fish would need, because fibres dried hard must be coaxed back into separate lamellae without tearing. Milk and oil do the coaxing, and the result is served on polenta that is structural rather than a side.

Yield: 6 servings. Soaking: 2 to 3 days. Prep: 1 hour. Cook: 4 1/2 hours. Rest: 30 minutes. Difficulty: advanced. Region: Veneto, around Sandrigo.

The Story

The recipe has a legal text. In 1987 a group of Sandrigo restaurateurs founded the Venerabile Confraternita del Bacala alla Vicentina, wrote the preparation down as a deposited formula and bound their members to it. The document fixes the fish, the ratio of milk to oil, the ban on stirring and the polenta, and every September the Confraternita fills the streets of Sandrigo for a festival built around one casserole. This constitution exists because the town tired of seeing salt cod sold under its name.

The supply line began with an accident. In 1432 the Venetian merchant Pietro Querini wrecked his ship in the North Atlantic and washed up with his surviving crew on Rost, the outermost island of the Lofoten. He wintered among fishermen who split cod, hung it in the freezing wind and kept it for years without salt, and reached Venice with samples and a report. The trade that followed had nothing to do with cuisine: Venice wanted a protein that survived shipping and kept through Lent, and bought it by the ton for six centuries.

Vicenza is fussy about grade. The Confraternita specifies ragno, the top classification of Norwegian dried cod, pale and soft fibred. Lower grades stay woody however long they soak. The polenta is not optional either: the plain between Vicenza and the Brenta lived on maize for generations, and the dish was engineered for it, since a milk and oil emulsion needs something dry underneath or it cloys.

Ingredients

For the stockfish

Dried stockfish, ragno grade if available, 2 1/4 lb (1 kg) dry weight
Cold water for soaking, enough to cover

For the casserole

Yellow onions, sliced thin, 1 3/4 lb (800 g)
Extra virgin olive oil, 2 cups (480 ml), divided
Salt packed anchovies, boned, 6 fillets
Flat leaf parsley, chopped, 1/3 cup (15 g)
All purpose flour for dredging, about 1 cup (125 g)
Whole milk, 2 cups (480 ml)
Grana Padano, grated, 1 1/2 oz (45 g)
Fine sea salt, 1 1/2 tsp (9 g)
Freshly ground black pepper, to taste

For the polenta

Coarse yellow polenta, 1 1/2 cups (250 g)
Water, 6 1/4 cups (1.5 litres)
Fine sea salt, 2 tsp (12 g)

For finishing

Extra virgin olive oil, a few drops
Flat leaf parsley, chopped, 1 tbsp
Freshly ground black pepper, to taste

Preparation

Beat the dry stockfish

Strike the dry fish along its length with a wooden mallet, working from tail to head until the fibres begin to separate, then turn it and repeat. Drying compacts the muscle into a board, and beating fractures that structure so water can enter.

Soak it for two or three days

Cut the fish into four or five large pieces, cover with cold water and refrigerate, changing the water every eight to twelve hours. Thick stockfish needs three days, thinner fish two. It is ready when the flesh gives under a fingertip like fresh fish: judge by feel, never by the clock.

Skin it and take out the bones

Drain and pat the pieces dry. Pull the skin away from a cut edge, where it comes off in wide strips, then lift out the spine and the fine rib bones. Leave the pieces around 3 in (8 cm) across, since every extra cut is a place where the fish will break.

Stew the onions slowly

Warm 1 cup (240 ml) of the olive oil in a wide pan over low heat, add the onions with a pinch of salt and cook 40 to 50 minutes. They must never colour: browned onion adds a caramel bitterness the milk carries through the casserole. Stir as often as you like, since this is the only stirring the recipe allows.

Melt the anchovies into the oil

Rinse the salt packed anchovies, bone them and add the fillets to the soft onions. Keep the heat low and press them against the base of the pan until they dissolve, two or three minutes. Stir in most of the parsley and taste, remembering the anchovies have already salted it.

Flour the fish and build the casserole

Dredge the fish in flour, patting off everything loose. Use a heavy casserole barely wider than the fish in one layer, because too much surface means a broken emulsion. Spread a third of the onions on the base, lay the fish on them, season, sprinkle with Grana Padano and cover with the rest.

Add the milk and the oil

Pour the milk over the top, then the remaining 1 cup (240 ml) of olive oil, until the liquid arrives level with the fish and no higher. The fish is not meant to swim. Set the pot over the lowest heat you can produce, with a flame tamer underneath.

Let it pippiare for four or five hours

Once the liquid trembles, leave it four to five hours with the lid barely ajar. The correct movement is what Vicenza calls pippiare: a barely perceptible shiver at the edges, one bubble every few seconds, never a simmer. Never stir. If the pot needs attention, rotate it by the handles so the contents shift as one mass.

Rest it and make the polenta

It is ready when the fish is tender, the liquid has drawn into a thick ivory cream and no oil sits on top. Let it stand off the heat 30 minutes. Meanwhile rain the polenta into salted boiling water and cook 40 to 45 minutes until it pulls from the sides.

Plating

Serve it warm rather than hot, at around 140°F (60°C). A scorching plate makes the oil rise and separate on the way to the table, and a shallow bowl or a low rimmed plate beats a flat one, because the cream runs.

Spoon the soft polenta onto one side and let it settle into an uneven oval rather than a disc. Lift a piece of fish out from underneath with a wide spatula, never a fork, and set it against the polenta so half of it rests on the maize.

Spoon the onion and milk cream over the fish and let it run onto the polenta, which is the point of the dish rather than an accident of service. Add a few drops of raw olive oil, parsley and a turn of pepper. Nothing else belongs, least of all lemon, which curdles the emulsion on contact.

Professional Technique

Start with the ingredient. Real bacala alla Vicentina is made with stoccafisso, air dried cod, and not with baccala, the salt cured product. Salt cod has been altered by brine and falls apart under long cooking, while air dried cod keeps a dense lamellar structure that survives five hours of heat and slowly opens into layers. The Veneto name is a historical misnomer from the Venetian market, where both arrived through the same trade and one word covered the lot.

The cooking is built on a prohibition: the casserole is never stirred, not once, across four or five hours, and the reason is mechanical. Rehydrated stockfish holds together as a stack of thin lamellae bound by softened connective tissue, and that stack has almost no lateral strength while hot. A spoon dragged through it shears the lamellae apart, and the fish that took three days to rebuild becomes threads suspended in milk. When the pot needs attention it is rotated by the handles, so everything moves together and no blade passes between the layers. The movement of the liquid has a name, pippiare, which describes a heat level: a barely perceptible tremor at the edge, one bubble every few seconds, silence rather than sound.

That narrow window protects the emulsion, which is the signature of the dish. Milk brings casein micelles and its sugar lactose to a pot holding a litre of olive oil, and the caseins act as emulsifiers, wrapping the oil droplets so that fat and water hold as one ivory cream, while the lactose and the milk proteins give it body and a faint sweetness that balances the anchovy. Push the temperature and the same chemistry turns against you. Above a gentle tremble the caseins coagulate into grains, release the oil they were holding, and the sauce stracca, the Veneto word for a sauce gone slack and split, with clear oil over curdled solids. There is no recovery, since whisking a broken emulsion while it is hot shears the fish as well. Stirring and boiling are one prohibition.

Texture and Moisture Control

Moisture here is managed across days, not minutes. Dried stockfish holds around fifteen per cent water and finishes the soak near seventy, and that change must happen evenly or the outside turns to pulp while the shoulder stays woody. Cold keeps the flesh firm while it drinks, and fresh water maintains the gradient that drives water inwards. Water left a full day stalls it.

During cooking the flour is the quiet control. Dredging leaves a thin layer of starch that gelatinises in the milk and stabilises the emulsion in the early hours, before the fish releases its own gelatin. Too much flour turns the sauce pasty, which is why everything loose is patted off. The Grana Padano adds protein, fat and savoury depth without ever reading as cheese.

The finished texture has two targets reached at the same moment: fish tender enough to part into thick soft layers yet still holding as a piece when lifted, and a dense pourable ivory cream with no free oil. The rest serves both, cooling the emulsion below the temperature at which it is fragile and letting the fish reabsorb a little of what it gave up.

Professional Mise en Place

A three day lead time and almost no last minute work. Nothing happens a la minute except the polenta and the plating.

Equipment and tools

Wooden mallet or heavy cleaver for beating the dry fish
Deep container for soaking, plus three days of refrigerator space
Heavy earthenware or cast iron casserole, barely wider than the fish
Flame tamer or heat diffuser, essential on a gas burner
Wide slotted spatula, heavy pan for the polenta

Prepared ahead

Stockfish beaten and soaking, 2 to 3 days ahead, water changed three times daily
Fish skinned and boned the morning of cooking, kept cold
Onion, anchovy and parsley base, 1 day ahead, refrigerated
The casserole itself, 1 day ahead, since it improves overnight
Grana Padano grated, flour in a shallow tray

Service setup

Casserole at 150°F (65°C) on a diffuser, never simmering, never stirred
Polenta on low heat, hot water to loosen it
Plates warm but not hot, wide, low rimmed
Spatula, spoon for the cream, parsley and oil ready
Lemon kept off the pass entirely

Chef Tips

Buy stockfish from a shop that sells it regularly and ask for ragno or the thickest pale fish they have. The grade decides the result more than anything you do later. If you can only find it presoaked, cut the soak to twelve hours.

Match the casserole to the fish rather than to the recipe. The pieces should sit in one close layer, because the ratio of surface to volume decides whether the milk and oil hold together. If your pan is too wide, cook a larger quantity.

Treat the burner as the real variable. Domestic gas rings at their lowest setting are still too hot, so a flame tamer is a requirement. Watch the surface for five minutes after it starts to move, adjust until one bubble rises every few seconds, then leave it.

Cook it the day before you want to eat it. The emulsion tightens, the anchovy settles back and the fish absorbs the onion, so a casserole rewarmed gently the next day beats one served the same evening.

Common Mistakes

Using salt cod instead of stockfish. Brined cod flakes apart in the first hour and never develops the lamellar structure this dish is built on. Buy air dried stoccafisso whatever the label says.

Stirring the casserole. One pass of a spoon through hot rehydrated stockfish shears the layers apart and turns the fish into threads. If the pot needs moving, rotate it by the handles.

Letting it simmer. Anything beyond a barely perceptible tremble coagulates the milk proteins and leaves a split sauce with clear fat on top. Fit a flame tamer and check every half hour.

Browning the onions. Caramelised onion introduces a sweet bitter note the milk carries into every mouthful and later seasoning cannot hide. Keep them pale across a full 40 to 50 minutes.

Rushing or warming the soak. Two days at room temperature gives a fish spoiled outside and hard at the centre. Soak in the refrigerator, change the water three times a day and judge by feel.

Wine Pairing

Soave Superiore DOCG: The Veneto answer and the structurally correct one. Garganega from the volcanic hills east of Verona builds a white with real weight and a faintly waxy texture, and that body lets it sit under a sauce carrying a litre of olive oil. Its acidity is medium rather than sharp, which suits a dish whose enemy is acid, and the bitter almond finish meets the anchovy directly.

Verdicchio dei Castelli di Jesi Classico Riserva DOCG: The extra ageing turns Verdicchio into something that can meet a five hour casserole. A broad slightly saline palate and a firm bitter close cut the fat of the emulsion, while its light nutty maturity runs alongside the Grana Padano.

Etna Bianco DOC: Carricante from the volcano is the sharpest tool here, with a pronounced mineral salinity and a high but ripe acidity that on a plate dominated by milk fat works like a reset between mouthfuls. It also has the aromatic restraint the dish needs, since stockfish and stewed onion are overwhelmed by a perfumed white.

Cinque Terre DOC: A dry Ligurian blend of Bosco, Albarola and Vermentino, grown on terraces above the sea and built on sapidity rather than fruit. The salt note meets the savoury depth of the dissolved anchovy on equal terms, and the light body keeps the pairing refreshing beside a rich casserole.

Vermentino di Gallura DOCG: Sardinian Vermentino from decomposed granite has more grip and more bitterness than its mainland relatives, and both are useful. The firm finish scrubs the palate of oil, the herbal edge picks up the parsley, and there is body enough to carry the polenta as well as the fish.

Storage & Reheating

This is one of the rare fish dishes that is better the day after, so cooking ahead is a choice rather than a compromise. Let the casserole cool, cover it and refrigerate up to 3 days in the pot it cooked in, so the fish is never moved. The emulsion sets firm and pale when cold, which is normal. Keep the polenta separate.

Rewarm it in the same casserole over the lowest heat with a diffuser underneath, 20 to 30 minutes, and do not stir even now. Rotate the pot by the handles and let the cream loosen on its own. If it looks tight, add a tablespoon of warm milk at the edge. A microwave splits the emulsion.

Freezing costs you something. Thawed, the casein emulsion separates and the sauce comes back grainy, so freeze only if you must, up to 2 months. Soaked raw stockfish freezes far better: portion it after boning and cook from thawed. Leftover polenta is best grilled in slabs.

Nutrition

Per serving, based on 6 servings including the polenta:

Calories: 780 kcal
Total Fat: 47 g
Saturated Fat: 8 g
Trans Fat: 0 g
Unsaturated Fat: 38 g
Cholesterol: 95 mg
Sodium: 890 mg
Total Carbohydrates: 44 g
Fiber: 3 g
Total Sugars: 7 g
Added Sugars: 0 g
Protein: 45 g
Lactose: 3 g
Principal micronutrients: vitamin B12, vitamin D, iodine, selenium, phosphorus, calcium