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This Bacalao al Pil Pil is a traditional Basque dish made with just four simple ingredients: cod, garlic, chili peppers, and olive oil. The magic lies in creating a silky pil pil sauce by emulsifying the cod’s natural gelatin with olive oil. Perfect for seafood lovers and fans of authentic Spanish cuisine!

Bacalao al Pil Pil: Basque Cod Tradition

Authentic Bacalao al Pil Pil Recipe

Few dishes represent the culinary identity of northern Spain as perfectly as Bacalao al Pil Pil. Originating in the Basque Country, this traditional cod recipe is celebrated not only for its rich flavor but also for the remarkable cooking technique that transforms a handful of simple ingredients into a luxurious sauce. Made with salted cod, olive oil, garlic, and dried chili peppers, it proves that exceptional cuisine does not always require a long list of ingredients.

What makes Bacalao al Pil Pil especially interesting is the creation of its famous sauce. As the cod cooks gently in olive oil, natural gelatin released from the fish combines with the oil to form a silky emulsion. Traditionally, cooks achieve this by moving the pan in small circular motions, encouraging the sauce to thicken naturally without cream, flour, or other additives. The result is a glossy, velvety coating that highlights the delicate flavor of the cod.

The dish also reflects the history of the Basque region. Salted cod became popular centuries ago because it could be preserved and transported over long distances, making it an essential ingredient in coastal communities. Over time, Basque cooks refined techniques for preparing cod, creating recipes that are now considered some of the finest examples of Spanish seafood cuisine. Bacalao al Pil Pil remains one of the most iconic expressions of this culinary heritage.

Another reason the dish continues to captivate food lovers is its balance of simplicity and skill. While the ingredient list is short, achieving the perfect pil pil sauce requires patience, attention, and practice. This combination of accessibility and craftsmanship makes the recipe appealing to both home cooks and professional chefs who appreciate the beauty of traditional cooking methods.

Today, Bacalao al Pil Pil is enjoyed far beyond the Basque Country, yet it remains deeply connected to its origins. Its elegant texture, rich flavor, and fascinating preparation technique make it more than just a cod dish—it is a celebration of regional tradition, culinary ingenuity, and the enduring appeal of Mediterranean seafood cooking.

Ingredients 

Metric Amount	Imperial Amount	Core Ingredient	Preparation
400 g	14 oz	Cod fillets	Skin-on, completely patted dry
6 cloves	6 cloves	Garlic	Peeled, thinly sliced
4 units	4 units	Dried chili peppers	Whole (traditional guindillas)
150 ml	⅔ cup	Olive oil	Extra virgin, high-quality
1 pinch	1 pinch	Sea salt	Fine, to taste

Instructions

1. Infuse the Olive Oil

In a wide, heavy-bottomed pan, heat the olive oil over low heat.

Add the sliced garlic cloves and dried chilies. Fry gently until the garlic turns golden brown, then remove and set aside. Keep the infused oil in the pan.

2. Cook the Cod

Lightly season the cod fillets with a pinch of salt.

Place them skin-side down in the pan with the infused oil.

Cook over low heat for 5–7 minutes per side, until the cod releases its natural gelatin and turns flaky and tender.

Remove the cod fillets carefully and set them aside, keeping the oil in the pan.

3. Make the Pil Pil Emulsion

With the pan off the heat but still warm, place a small fine-mesh strainer into the oil.

Move the strainer in continuous circular motions for 3–5 minutes, helping the cod’s gelatin and the oil emulsify into a silky, golden pil pil sauce.

Once the sauce thickens, return the cod fillets to the pan and spoon the sauce on top.

4. Serve

Drizzle the pil pil sauce over the cod and decorate with the roasted garlic and chilies. 

You can serve this recipe with boiled vegetables, sliced fried potatoes, a few slices of bread, or white rice to make the dish more complete.

Chef’s Notes for Bacalao al Pil Pil

Why did my pil pil sauce turn translucent or fail to emulsify into a creamy texture? The magic of an authentic pil pil relies entirely on binding the fish’s natural gelatin with the fats of the extra virgin olive oil. If your sauce looks like plain warm oil, it is almost always because the pan was too hot or the cod did not release enough of its white juices. To guarantee success, always cook the cod at a bare simmer—if you see active frying bubbles, remove the pan from the heat immediately to prevent the gelatin from breaking down.

Should I use traditional salted cod (bacalao desalado) or can I make this with fresh cod? While Basque purists will always demand high-quality salted cod because the traditional curing process alters the muscle fibers and concentrates the savory depth of the fish, you can absolutely make a spectacular version using fresh cod. If you go the fresh route, choose thick, center-cut fillets and sprinkle them with a generous pinch of fine sea salt about twenty minutes before cooking; this helps firm up the flesh and coaxes out the essential surface moisture needed to form your emulsion.

What is the easiest way to rescue a broken or separated pil pil sauce? Don’t panic if your oil separates; it happens to the best cooks in Spain. If your circular motions aren’t thickening the sauce, simply pour the separated oil into a glass pitcher, leaving a tiny splash of the white cod gelatin at the bottom of your warm pan. Take a small wire whisk or a mesh strainer and rapidly beat that splash of gelatin while slowly drizzling the warm oil back in, a few drops at a time, just like making a homemade mayonnaise, and watch it turn beautifully opaque.

Common Mistakes cooking Bacalao al Pil Pil

Overheating the olive oil during the infusion: If you crank up the flame while frying your garlic and dried guindillas, you will scorched the aromatics and alter the chemistry of your extra virgin olive oil. High heat destroys the delicate, fruity notes of a premium oil and ruins its emulsifying properties, meaning your sauce will struggle to come together later. Keep the flame at its absolute lowest setting so the garlic slices gently turn a gorgeous pale golden hue without turning bitter.

Placing the cod skin-side up at the start of cooking: The absolute secret to an effortless emulsion is ensuring that the cod skin faces the bottom of the pan immediately. The skin is where the vast majority of the fish’s natural gelatin is stored; placing it face down allows the direct, low heat to gently render and extract those thick, milky proteins straight into the warm olive oil pool.

Rushing the final straining and shaking process: Trying to force a pil pil emulsion over a roaring burner or using frantic, aggressive motions will break the delicate bond between the water-based gelatin and the oil. This recipe requires the pan to be warm but completely off the direct flame, allowing you to use steady, rhythmic, and gentle circular motions with a mesh strainer to slowly coax the two liquids into a seamless, velvety gold cream.

Ingredient Swaps & Variations on Bacalao al Pil Pil

• The Sherry Wine Splash: If you want to introduce a subtle coastal acidity to break up the richness of the olive oil, you can add a single tablespoon of dry Spanish Fino or Manzanilla sherry directly into the rendered cod juices right before you begin the emulsion process. This adds a brilliant, nutty undertone that pairs beautifully with the spicy bite of the chilis.

• The Green Onion and Parsley Twist: While traditional Basque recipes completely forbid herbs, a highly popular home variation across the Cantabrian coast involves tossing finely minced fresh flat-leaf parsley into the pan at the very last second of the emulsion, turning the golden pil pil into a vibrant, flecked green canvas.

• A Mild Chili Alternative: If traditional dried Spanish guindillas or cayenne peppers provide too sharp of a heat for your family dinner, you can easily swap them out for thin rings of dried red bell pepper or a pinch of sweet Spanish smoked paprika (pimentón dulce) sprinkled over the hot garlic to capture the classic crimson color without the fiery punch.

Recipe Card

Bacalao al Pil Pil - Traditional Basque Cod Recipe

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This Bacalao al Pil Pil is a traditional Basque dish made with just four simple ingredients: cod, garlic, chili peppers, and olive oil. The magic lies in creating a silky pil pil sauce by emulsifying the cod’s natural gelatin with olive oil. Perfect for seafood lovers and fans of authentic Spanish cuisine!

Prep Time 5 minutes

Cook Time 25 minutes

Total Time 30 minutes

Ingredients

• 400 g cod fillets
• 6 garlic cloves
• 4 dried chilies (guindillas)
• 150 ml olive oil
• A pinch of salt

Instructions

• Infuse the Olive Oil

In a wide, heavy-bottomed pan, heat the olive oil over low heat.
Add the sliced garlic cloves and dried chilies. Fry gently until the garlic turns golden brown, then remove and set aside. Keep the infused oil in the pan.

• Cook the Cod

Lightly season the cod fillets with a pinch of salt.
Place them skin-side down in the pan with the infused oil.
Cook over low heat for 5–7 minutes per side, until the cod releases its natural gelatin and turns flaky and tender.
Remove the cod fillets carefully and set them aside, keeping the oil in the pan.

• Make the Pil Pil Emulsion

With the pan off the heat but still warm, place a small fine-mesh strainer into the oil.
Move the strainer in continuous circular motions for 3–5 minutes, helping the cod’s gelatin and the oil emulsify into a silky, golden pil pil sauce.
Once the sauce thickens, return the cod fillets to the pan and spoon the sauce on top.

• Serve
  Drizzle the pil pil sauce over the cod and decorate with the roasted garlic and chilies.

Notes

Since the sauce is oil-based, a good extra virgin olive oil makes a huge difference.

Cooking slowly prevents the oil from overheating and ensures the emulsion forms properly.

Take your time moving the strainer; rushing may “break” the sauce.

Nutrition Information:

Yield:

2

Serving Size:

1
Amount Per Serving: Calories: 865Total Fat: 70gSaturated Fat: 10gTrans Fat: 0gUnsaturated Fat: 58gCholesterol: 110mgSodium: 231mgCarbohydrates: 11gFiber: 2gSugar: 5gProtein: 48g

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