Summary: Few sauces in Spanish cuisine spark such heated debate as *salsa vizcaína*. The starting point of the argument is always the same: does it contain tomato or not?
The short answer is no. Authentic *salsa vizcaína* does not contain tomato.
The long answer is this article.
At Bacalalo, we have been in Mercat del Ninot in Barcelona since 1990, with cod as the focus of our business. We are not Basque—we are Catalan. But we have been selling and talking about *bacalao a la vizcaína* for thirty years, and we know perfectly well what separates the authentic version from the more or less successful adaptations that have proliferated throughout Spain.
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What is Salsa Vizcaína: Definition and Context
*Salsa vizcaína* (*salsa bizkaina*, in Basque) is a Basque sauce made primarily with rehydrated *choricero* peppers, onion, and garlic. It is the base for the dish "bacalao a la vizcaína"—one of the three great Basque cod dishes, along with *pil-pil* and *Club Ranero*.
But *salsa vizcaína* has its own merit, beyond its use as a cod sauce. It is an independent ingredient with applications in other dishes, and understanding its preparation process is understanding a fundamental Basque culinary technique.
The sauce as an ingredient, not just an accompaniment
This is the perspective that differentiates this article from a conventional "bacalao a la vizcaína" recipe. *Salsa vizcaína* is not merely a topping for cod—it is a preparation with its own identity that can be used in:
- As a cod sauce (the most well-known use)
- With broken or poached eggs
- In fillings for roasted peppers
- As a base for soupy rice dishes
- In marinades for red meats
- In croquettes with *bacalao a la vizcaína* filling
The History of Salsa Vizcaína
*Salsa vizcaína* originated in the Basque Country in the 19th century, by which time the *choricero* pepper—brought from America—had already been integrated into Basque and Navarrese cuisine for centuries.
The *choricero* pepper (*Capsicum annuum* variety, a red pepper dried outdoors) arrived on the Iberian Peninsula in the 16th century. In the Basque Country and Navarra, it was integrated into cuisine with particular intensity: when dried, it becomes a concentrate of flavor, color, and sweetness that transforms any stew.
The *vizcaína* as a sauce specifically for cod developed in Bilbao throughout the 19th century. Cod and Bilbao have a deep historical relationship—Basque cod fishermen sailed to the fishing grounds of the North Atlantic. The dried and preserved *choricero* pepper was the perfect counterpoint to salted cod: sweet, meaty, with enough body to create a sauce without the need for thickeners.
Tomato: the misunderstanding
Tomato found its way into *vizcaína* recipes through gastronomic contamination. When *bacalao a la vizcaína* began to gain popularity outside the Basque Country, cooks from other regions—accustomed to using tomato in their red sauces—added it because they thought it was the "normal" way to make a red sauce.
The result is not bad. But it is something else.
In the Basque Country, the debate about tomato in *vizcaína* is almost constitutional. Defenders of the tomato-free version—who are the Basque purists—argue that tomato radically changes the flavor profile of the sauce: it adds acidity and water that dilutes the *choricero* pepper concentrate. The authentic version is denser, darker, and has a deeper, more specifically "Basque" flavor.
The Choricero Pepper: The Central Ingredient
Understanding *salsa vizcaína* begins with understanding the *choricero* pepper.
What is a choricero pepper?
The *choricero* pepper is a red pepper (*Capsicum annuum* variety) that is harvested ripe and air-dried, hung in strings or spread on sunny surfaces. The drying process concentrates all its natural sugars, color, and flavor.
It has a sweet flavor with mild smoky notes, without spiciness (or with an almost imperceptible spiciness in the milder varieties). Its dried flesh rehydrates well in warm water, releasing an intense red pulp that is the essence of *salsa vizcaína*.
How to choose a good choricero pepper
- Color: intense red, without black or gray areas indicating deterioration
- Texture: flexible but dry. A *choricero* pepper that crumbles into powder is too dry. One with visible moisture is poorly preserved.
- Aroma: sweet, with notes of dried pepper, without moldy or rancid smell
- Origin: Navarra and the Basque Country produce the best *choricero* peppers. The designation "pimiento choricero" from these areas guarantees quality.
Format: whole vs. jarred pulp
*Choricero* peppers are found in two formats:
Whole dried: the traditional format. They are rehydrated in warm water for 20-30 minutes, then the seeds are removed, and the pulp is scraped with a spoon, separating it from the skin. More work but better results—freshly rehydrated pulp has better flavor and texture.
Jarred pulp: ready-made, preserved *choricero* pepper pulp. Practical and yields good results. The yield is direct—no need to rehydrate or scrape. It is the most common option in high-volume professional kitchens.
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The Authentic Salsa Vizcaína Recipe
This is the sauce alone, without the cod. Once you master the sauce, using it with cod (or anything else) is trivial.
Ingredients (for about 600ml of sauce)
- 8-10 dried *choricero* peppers (or 200g of jarred pulp)
- 3 medium onions (about 500g), thinly sliced (julienne)
- 2 cloves garlic, minced
- 1 slice of day-old bread
- 100ml extra virgin olive oil
- 200ml cod stock (or mild fish stock)
- Salt to taste
- (Optional) a pinch of *pimentón de la Vera* to enhance color
Step 1: Rehydrate the *choricero* peppers
If using whole dried peppers: wash, cut in half, remove seeds. Place in a bowl with warm water and let rehydrate for 20-30 minutes. Remove, drain, and scrape the pulp with a spoon, separating it from the skin.
If using jarred pulp: measure the amount and set aside. No preparation needed.
Step 2: The base *sofrito* (the key to success)
In a wide casserole dish, heat the oil over medium-low heat. Add the thinly sliced onion with a pinch of salt. Cook over low heat for 45-60 minutes, stirring occasionally, until the onion is completely transparent, golden, and very tender. There are no shortcuts in this step.
The onion is the structure of *salsa vizcaína*. Poorly poached onion (cooked over high heat, with residual water, without enough time) produces an acidic sauce with an unsuitable body. Well-poached onion provides concentrated sweetness that complements the *choricero* pepper.
Halfway through poaching, add the garlic. In the last 10 minutes, add the chopped bread and let it integrate with the onion.
Step 3: Incorporate the *choricero* pepper pulp
Add the *choricero* pepper pulp to the onion *sofrito*. Stir well. Cook for 5-10 minutes over low heat for the pulp to integrate with the onion.
Step 4: Add the stock and cook
Add the cod or fish stock. Cod stock (the final desalting water, filtered, or a mild bone broth) perfectly complements the sauce. If not available, a mild fish stock works well.
Cook over low heat for 20-25 minutes, stirring occasionally.
Step 5: Blend and strain
Blend the sauce vigorously with an immersion blender until a smooth texture is obtained. Pass through a chinois or fine sieve to remove pepper skin remnants and achieve a completely homogeneous sauce.
Taste for salt. The sauce is ready.
Expected result
- Color: intense dark red, almost burgundy
- Texture: dense, coating the back of a spoon, without lumps
- Flavor: sweet with pepper notes, depth from caramelized onion, no acidity
- Aroma: intense but harmonious, without bitter notes
How to Use Salsa Vizcaína with Cod
Once you have the sauce, using cod is simple.
Cod for *vizcaína*: desalinated cod loin, perfectly salted. Thickness matters—thick loins (more than 2cm) are better because they withstand cooking in the sauce without falling apart.
The process:- Lightly brown the cod loins in olive oil (skin side up first, 2 minutes, then flip and 1 more minute). Do not cook completely—it will finish in the sauce.
- Heat the *salsa vizcaína* in a wide casserole dish.
- Add the cod loins to the hot sauce, skin side up.
- Cook over very low heat for 8-10 minutes, basting the cod with the sauce occasionally.
- Serve in the same casserole dish or on individual plates, generously spooning sauce over it.
Differences with Other Red Cod Sauces
*Vizcaína* is a red sauce, but it is not "a tomato sauce with cod." The differences are fundamental:
| Characteristic | Salsa Vizcaína | Tomato Sauce | Salsa Brava |
|---|---|---|---|
| Base | Choricero pepper + onion | Tomato | Tomato + paprika |
| Texture | Dense, no free water | Variable, more watery | Variable |
| Sweetness | High (pepper + caramelized onion) | Medium (tomato) | Low |
| Acidity | Minimal | High (tomato) | Medium-high |
| Color | Dark burgundy red | Orange-red | Intense red |
| Flavor profile | Deep, umami, sweet | Fresh, acidic | Spicy, seasoned |
Preserving Salsa Vizcaína
- In the refrigerator: up to 5-7 days in an airtight container.
- In the freezer: up to 3 months. *Salsa vizcaína* freezes perfectly—it is one of the best sauces to prepare in large quantities and freeze in portions.
- In sterilized jars: can be stored for several months if hot-packed in sterilized jars and processed in a *bain-marie*.
Frequently Asked Questions about Salsa Vizcaína
1. Does authentic *salsa vizcaína* never contain tomato? Correct. The traditional Basque Country recipe does not include tomato. Versions that do are adaptations found outside the region or modern interpretations. They are not incorrect *per se*—they are simply not traditional *vizcaína*.
2. What is the difference between *salsa vizcaína* and jarred pepper sauce? Jarred pepper sauce (generally *piquillo* peppers or roasted peppers) is different in taste and texture. The *choricero* pepper has a much more concentrated and specific flavor. They are not interchangeable.
3. Can I use *pimentón de la Vera* instead of *choricero* pepper? Paprika adds dried pepper flavor but does not give the same texture or depth of flavor as *choricero* pulp. It can be added in small amounts to enhance color, but it does not replace the *choricero* pepper as the main ingredient.
4. How long does it take to prepare *salsa vizcaína*? The sauce takes between 1 hour and 1.5 hours, including onion poaching time. There are no shortcuts in poaching—it is the key to flavor. It can be prepared in advance and stored in the refrigerator or frozen.
5. Is *salsa vizcaína* spicy? No. The *choricero* pepper is a sweet variety, with no significant capsaicin. Authentic *salsa vizcaína* is not spicy. If spiciness is preferred, a pinch of cayenne or chili pepper can be added, but it is not traditional.
6. Can cod stock be substituted with chicken stock? It is not advisable. Chicken stock introduces flavor notes that do not belong in this dish. If cod stock is not available, it is better to use tap water or a mild vegetable stock.
7. Why does *salsa vizcaína* contain bread? Bread (a day-old slice) acts as a natural thickener and helps give body to the sauce during blending. It is an ancient technique in Basque and Mediterranean cuisine—*pochados* (slow-cooked dishes) with bread are denser and have a better texture than those using only vegetables.
8. Can I make *salsa vizcaína* without cod stock? Yes. Cod stock adds a marine flavor that complements the sauce when used with cod, but the sauce works without it using water or mild fish stock. If the sauce is to be used with other dishes (not cod), cod stock can be omitted entirely.
9. Which cut of cod is best for *vizcaína*? Thick loins. *Salsa vizcaína* is dense and powerful—it needs cod with personality and structure. A loin of 200-250g per person, well desalinated, is the ideal cut. Flakes or small pieces would disintegrate in the sauce.
10. Can *bacalao a la vizcaína* be made with fresh cod (undesalted)? It can, but the traditional recipe uses desalinated salted cod. The salting and desalting process changes the texture of the cod (making it firmer) and adds a specific flavor that is part of the dish's profile. Fresh cod will produce a different result—not necessarily bad, but not traditional *vizcaína*.
Conclusion
*Salsa vizcaína* is one of the great achievements of Basque cuisine: dense, dark, sweet, without the tomato that others add out of habit. Understanding it as an independent sauce—not just as "the cod sauce"—opens up a range of uses that goes far beyond the classic dish.
The secret lies in the *choricero* pepper and in time: slowly poached onion, well-integrated pulp, cod stock that unites everything. There are no shortcuts in this sauce—and precisely for that reason, the result justifies the process.
And the cod that goes into it matters. At Bacalalo, we select desalinated cod loins with the criteria demanded by this dish: thickness, salt level, texture. Since 1990, the same standards.
Buy cod for *vizcaína* at Bacalalo
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