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Bacalao a la Vizcaína

Bacalao a la Vizcaína

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Biscay's salt cod rests in a brick-red sauce of choricero peppers and onions cooked down slowly, with no tomato to cover their sweetness and no hard boiling to dry the fish.

Main Dishes
Spanish
Comfort Food
Easter
One Pot
48 hr 30 min
Active Time
1 hr 45 min cook50 hr 15 min total
Yield4 main-course servings

Bacalao a la Vizcaína belongs to Biscay, Bizkaia, in the Basque Country. Salt cod sits in a deep brick-red sauce made from dried choricero peppers and a great weight of onions cooked until they nearly melt. The old home style has no tomato. Its colour comes from the pepper and its sweetness from the onion, which is what makes this dish rather than cod served in tomato sauce.

The onion decides whether it works. I cook it low and slow until it is dark gold, jammy, and reduced by more than half, because hurried onion stays pale and sharp beneath the pepper. Once the sauce is milled smooth, the cod needs only a quiet poach. Let it boil and those broad flakes tighten into cotton. Keep the sauce at a bare tremble and leave the fish alone.

Far from Bizkaia, plain jarred carne de pimiento choricero is the easiest answer and it is the same ingredient, already scraped. If neither dried nor jarred choricero is available, use dried ñoras in the same weight; the sauce will be darker, nuttier, and a little less sweet, but it remains an honest household compromise. Don't reach for smoked paprika, which brings smoke the dish never asked for. The Margin beside mine says, "salt after the cod, never before." Siempre sale, si lo sigues, it turns out if you follow it.

Bacalao a la Vizcaína belongs to Bizkaia, where Bilbao's trade and Basque fisheries made durable salt cod a mainstay even far from the coast. Its sauce joined that preserved fish to choricero peppers, an American arrival dried after the local harvest for the winter larder. Old households differ over a little bread or a plain biscuit to bind the sauce, but its brick-red colour comes from choricero and its sweetness from onion, not tomato.

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Ingredients

dry-salted cod loin

Quantity

800g

weighed before soaking, skin on, cut into 4 portions

dried choricero peppers or plain jarred choricero pepper pulp

Quantity

10 medium (about 70g dried) or 120g pulp

dried peppers stemmed, seeded, soaked, and scraped

mild red onions

Quantity

1kg peeled weight

thinly sliced

garlic

Quantity

4 cloves

peeled and lightly crushed

extra-virgin olive oil

Quantity

150ml

day-old rustic bread crumb

Quantity

25g

crust removed and crumb torn

unsalted fish stock or water

Quantity

300ml, plus up to 60ml water if needed

fine sea salt

Quantity

2g

Equipment Needed

  • Wide heavy casserole or cazuela, about 28cm
  • Large non-reactive dish for soaking the cod
  • Food mill or blender and medium sieve
  • Small plate for submerging the peppers
  • Flexible spatula or broad serving spoon

Instructions

  1. 1

    Desalt the cod

    Rinse the loose salt from the cod and place it skin-side up in a deep non-reactive dish. Cover it with cold water by at least 5cm and refrigerate for 48 hours, changing the water every 8 hours. At 36 hours, cook a thin flake in simmering water for 30 seconds and taste it. A piece around 3cm thick may be ready; a thick loin closer to 4cm usually needs the full 48 hours. Drain and pat it thoroughly dry.

    Keep the cod refrigerated throughout the soak. Warm water softens the flesh and encourages spoilage; cold water draws out the salt slowly while the flakes remain firm.
  2. 2

    Wake the peppers

    If using dried choriceros, split them open, remove the stems and seeds, and rinse away any clinging seeds. Cover them with just-boiled water, weigh them down with a small plate, and soak for 30 minutes, replacing the water once after 15 minutes. Lay each pepper skin-side down and scrape the softened red flesh away with the back of a teaspoon. You want about 120g of pulp. Discard the skins and soaking water, which can carry bitterness.

    Using plain jarred carne de pimiento choricero costs the dish nothing and saves the soaking. Read the label and avoid jars mixed with tomato, garlic, or spices.
  3. 3

    Melt the onions slowly

    Warm the olive oil in a wide, heavy 28cm casserole over low heat. Add the onions, crushed garlic, and 2g salt. Cover and cook for 20 minutes, stirring twice, until the onions collapse and release their liquid. Uncover and continue cooking gently for 50 to 55 minutes, stirring every 8 minutes, until they are dark gold, jammy, and reduced by more than half without crisp edges. This slow cook is what gives the sauce its sweetness. Rush the onion and the sauce stays sharp.

  4. 4

    Build the red sauce

    Add the choricero pulp to the onions and cook gently for 5 minutes, stirring so it loses its raw edge without scorching. Add the torn bread, then pour in 300ml unsalted fish stock or water. Bring it to a quiet simmer and cook uncovered for 15 minutes. The bread should disappear and the sauce should turn a deep brick red.

  5. 5

    Mill the sauce smooth

    Remove the garlic if you want a gentler finish, then pass the sauce through a food mill directly into a bowl. A blender works, but blend only until smooth and pass the sauce through a medium sieve. Return it to the same casserole. It should coat a spoon yet fall from it in a broad ribbon; add up to 60ml water if it sits like paste. Do not correct the salt yet. The cod still has something to say about that.

  6. 6

    Poach the cod gently

    Bring the sauce to the barest simmer. Set the dried cod portions into it skin-side up, leaving a little space between them, and spoon sauce over the tops. Cover and cook over low heat for 8 to 12 minutes, depending on thickness. Do not let the sauce boil hard. The cod is ready when light pressure separates it into large moist flakes and the centre has turned pearly and opaque rather than dry and cottony.

  7. 7

    Rest and serve

    Take the casserole off the heat and leave it covered for 5 minutes. Taste the sauce only now and add salt if it truly needs it. Bring the casserole to the table with the cod nestled in the sauce and plenty of bread for mopping. There is no garnish to distract from it. Tal como se hace allí, exactly as it is made there.

Chef Tips

  • Buy thick salt cod loin with the skin attached. The skin supplies gelatin as the fish cooks, giving the sauce a fuller sheen and helping the flakes stay together. Pre-desalted cod is convenient; use about 950g and begin at the pepper step.
  • Dried choriceros vary in size, so aim for 120g scraped pulp. Pésalo, no lo adivines, weigh it, don't guess. Plain jarred choricero pulp is entirely proper here and usually more consistent.
  • If choriceros are unavailable, use about 70g dried ñoras and scrape them in the same way. Ñoras taste darker and nuttier, so the finished sauce loses some of the choricero's gentle sweetness. Smoked paprika is not a substitute.
  • Use unsalted fish stock or plain water. Packaged stock and partially desalted cod together can make an inedible salt lick, and no onion can rescue that.
  • A dry Basque txakoli cuts through the sweet onion and olive oil. If you prefer red, pour a young Rioja Alavesa without heavy oak.
  • Refrigerate leftovers in their sauce for up to 2 days. Reheat covered over the lowest heat, adding a spoonful of water if needed; boiling will dry the cod.

Advance Preparation

  • Begin desalting a thick cod loin 48 hours before cooking. Change the cold water every 8 hours and keep the dish refrigerated throughout.
  • The choricero and onion sauce can be made up to 2 days ahead. Cool it promptly, cover, and refrigerate; loosen it with a little water when reheating before adding the cod.
  • For an Easter meal, prepare the sauce the day before and poach the cod shortly before serving. The sauce improves as it rests, while the fish is best cooked only once.

Frequently Asked Questions

Nutrition Information

1 serving (about 550g)

Calories
705 calories
Total Fat
36 g
Saturated Fat
5 g
Trans Fat
0 g
Unsaturated Fat
30 g
Cholesterol
140 mg
Sodium
1200 mg
Total Carbohydrates
31 g
Dietary Fiber
6 g
Sugars
13 g
Protein
64 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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