Authentic bacalao al Pil Pil made the Basque way. Silky garlic‑olive oil sauce, tender cod, and simple technique for a perfect traditional Spanish dish.
There are only a handful of dishes in the world that look deceptively simple yet feel almost magical when you make them.
Bacalao al Pil Pil is one of them. A classic from the Basque Country, this dish is built on just four ingredients — salt cod, olive oil, garlic, and a dried chili — but the result is a silky, glossy, golden sauce that coats the fish like a warm blanket. It is the kind of recipe that proves how far technique can take you when the ingredient list is short and honest.
What makes bacalao al Pil Pil special is the transformation that happens in the pan.
As the cod gently cooks, it releases natural gelatin. When you swirl the pan in slow, steady movements, that gelatin emulsifies with the olive oil and turns into a thick, luxurious sauce.
That’s bacalao al Pil Pil.
No cream, no flour, no tricks — just patience and a bit of Basque culinary wisdom.
Enjoy!
Bacalao al Pil Pil — Basque Cod in Garlic‑Olive Oil Sauce
This is a classic Spanish salt cod recipe with a thick garlic, olive oil and chili sauce: also known as bacalao al pil pil!
- 1⅓ lb salt cod fillets (600 g) desalted, loin pieces preferred
- 1 cup extra‑virgin olive oil (240 ml)
- 4 cloves garlic thinly sliced
- 1 dried guindilla or 1 mild dried chili
Rinse the salt cod and soak it in cold water for 24 to 48 hours, changing the water every 8 hours. Pat dry before cooking.
Add the olive oil, sliced garlic and dried chili to a wide pan. Warm gently over low heat until the garlic turns pale golden. Remove the garlic and chili and set aside.
Place the cod fillets in the warm oil, skin‑side down. Keep the heat low — the oil should never bubble aggressively. Cook for 8 to 10 minutes, turning once, until the cod releases its gelatin and turns opaque.
- Remove the cod and set it aside on a warm plate. Keep the oil over low heat. Begin swirling the pan in slow, steady circular motions. The oil will gradually turn cloudy as the gelatin emulsifies.
- Continue swirling until the sauce thickens into a glossy, creamy consistency. If it’s too thick, add a spoonful of warm water. If it breaks, lower the heat and keep swirling until it comes back together.
Return the cod to the pan and spoon the pil pil sauce over the fillets. Add the reserved garlic and chili back on top.
Plate the cod with plenty of sauce. Serve immediately with crusty bread.
What Is Pil Pil?
Pil pil is both the name of the sauce and the sound it traditionally makes in the pan — a soft, rhythmic “pil pil” as the oil and gelatin thicken together. It is one of the most iconic sauces in Basque cuisine, and it is famous for being simple, technical, and deeply satisfying.
The magic lies in the emulsion. When cod is cooked slowly, its collagen melts into the oil. If the heat is low and the pan is moved gently, the oil and gelatin bind into a creamy, glossy sauce. Too hot, and the sauce breaks. Too cold, and it won’t emulsify. It is a dance — slow, controlled, and almost meditative.
Authentic pil pil uses salt cod, not fresh cod. Salt cod has a firmer texture and releases more gelatin, which is essential for the sauce. The garlic and dried chili (guindilla) are aromatics, not flavor bombs. They perfume the oil without overpowering the fish.
Bacalao al Pil Pil is a masterclass in restraint. It is about understanding your ingredients, respecting the process, and letting the technique shine. When done right, the sauce coats the fish in a golden, silky layer that feels both rustic and refined.
If you want to see how the classic method is taught in Spain, this guide to the traditional Basque pil‑pil technique is an excellent reference.
Choosing & Preparing the Cod
Salt cod is the heart of this bacalao al Pil Pil recipe, and choosing the right cut makes a noticeable difference. Look for thick, white fillets with even texture and no dark patches. Loin pieces are ideal because they hold their shape and release plenty of gelatin.
Desalting is essential. Rinse the cod under cold water, then soak it in the fridge for 24–48 hours, changing the water every 8 hours. The exact time depends on the thickness of the fillets, but the goal is to remove enough salt while keeping the fish firm and flavorful. When properly desalted, the cod should taste pleasantly seasoned, not salty.
Can you use fresh cod for bacalao al Pil Pil? Technically yes — but the sauce won’t emulsify the same way. Fresh cod simply doesn’t release enough gelatin. If you want the real Basque experience, salt cod is non‑negotiable.
The Technique: How Pil Pil Works
Pil pil is all about heat control and movement.
The olive oil should never bubble aggressively. Instead, it should stay warm enough to cook the cod gently and coax out its gelatin. If the oil gets too hot, the fish will tighten and the sauce will break.
Once the cod has released enough gelatin, the emulsification begins. Traditionally, the pan is held by the handle and moved in slow circular motions. This movement encourages the oil and gelatin to bind into a thick, creamy sauce. You’ll see the transformation happen gradually: the oil becomes cloudy, then thicker, then glossy.
If the sauce refuses to emulsify, don’t panic. Remove the cod, lower the heat, and keep swirling. Sometimes the sauce needs a moment to settle before it comes together. If it breaks, you can rescue it by adding a spoonful of warm water and swirling again.
This technique is centuries old, and it is still done the same way in Basque kitchens today. Bacalao al Pil Pil is a dish that rewards patience and attention — and once you master it, you’ll feel like you’ve unlocked a culinary secret.
Serving Suggestions
Bacalao al Pil Pil is traditionally served with good bread — crusty, warm, and ready to soak up every drop of sauce. You don’t need elaborate sides; the dish is rich and satisfying on its own. A simple green salad or roasted peppers works well if you want something fresh alongside it.
For wine, the Basque classic is Txakoli — crisp, slightly effervescent, and perfect with oily fish. If you can’t find it, a dry Albariño or Verdejo is a great alternative. The acidity cuts through the richness of the sauce and keeps the dish feeling light.
f you enjoy traditional Basque salt cod dishes, you’ll also love my Basque salt cod in Vizcaína sauce — rich, vibrant, and perfect for a Spanish dinner.
FAQ
Why didn’t my sauce emulsify?
Usually the heat was too high or too low. Keep the oil warm, not hot, and swirl patiently. If needed, remove the cod and continue emulsifying the sauce on its own.
Can I use fresh cod instead of salt cod?
You can, but the sauce won’t thicken the same way. Salt cod releases more gelatin, which is essential for pil pil.
Can I make the pil pil sauce ahead of time?
It is best served immediately. The sauce can thicken or separate when reheated. If you must reheat, do it very gently and swirl the pan again.
What can I do with leftovers?
Leftover pil‑pil sauce is incredible drizzled over roasted potatoes, grilled vegetables, or even scrambled eggs.
Is guindilla essential?
It is traditional, but you can substitute with a mild dried chili. The goal is aroma, not heat.
Closing
Bacalao al Pil Pil is one of those dishes that stays with you.
It is simple, honest, and deeply rooted in Basque tradition — yet it feels modern and elegant when plated with care. With just 4 ingredients and a bit of technique, you can create a dish that tastes like it came straight from a Basque kitchen.