Berberechos a la Marinera

Ingredients

Equipment Needed

• •Large nonreactive bowl, at least 5L
• •Large colander
• •Digital kitchen scale
• •Wide sauté pan, 30 to 32cm, with a tight-fitting lid
• •Slotted spoon or small tongs

Instructions

1. 1

   Sort and purge

   Discard any cockle with a broken shell. Tap any gaping shell firmly; if it doesn't close, discard it. Dissolve the 70g salt completely in 2L cold water, set a colander inside a large bowl if it fits, and submerge the cockles. Cover loosely and refrigerate for 2 hours. This water matches the salinity they know, so they stay alive and expel their sand instead of closing tight.

   Don't soak live cockles in unsalted fresh water. Pésalo, no lo adivines: use 35g salt for every litre of water.
2. 2

   Lift and rinse

   Lift the colander from the bowl without pouring the sandy water back over the cockles. Rinse them thoroughly under cold running water, rubbing handfuls of shells together to remove mud from the ridges. Drain well. If the bottom of the bowl held a good deal of sand, repeat the salted soak for another 30 minutes with fresh water and salt.

3. 3

   Cook the sofrito

   Heat the olive oil in a wide 30 to 32cm pan over medium-low heat. Add the onion without salt and cook for 14 to 16 minutes, stirring regularly, until deep gold, soft, and sweet but not scorched. Add the garlic and cook for 90 seconds. This is the sofrito, the slow onion base; rushing it leaves the wine sauce pale and sharp.

4. 4

   Build the wine sauce

   Sprinkle in the flour and stir for 1 minute so it loses its raw taste. Take the pan off the heat, add the pimentón, and stir for 10 seconds. Pour in the wine at once while stirring, then return the pan to medium heat. Add the 75ml water, bay leaf, and half the parsley. Simmer for 2 minutes. The sauce should remain fluid enough to run between the shells, not sit like paste.

   Pimentón burns quickly and becomes bitter. Taking the pan off the heat before it goes in gives you its rust-red colour and sweetness without scorching it.
5. 5

   Open the cockles

   Raise the heat to medium-high and add the drained cockles. Turn them through the sauce, cover tightly, and cook for 2 minutes. Shake the pan by its handles, uncover, and transfer every open cockle to a warm serving bowl. Cover again and check every 30 seconds; most will open within 3 to 4 minutes. The liquor they release will loosen and season the sauce.

   Remove the cockles as they open rather than waiting for the slowest one. Discard any still closed after 5 minutes of cooking; don't force the shell.
6. 6

   Finish and serve

   Discard the bay leaf. Return the opened cockles and any liquor collected in their bowl to the pan. Add the remaining parsley and turn everything together for 20 to 30 seconds, just long enough to gloss the shells with sauce. Taste before adding any salt; the cockle liquor is usually enough. Carry the pan straight to the table and serve with bread for the sauce.

Chef Tips

• •Buy the cockles alive from a licensed fishmonger on the day you cook them. The shells should be closed, or close when tapped, and smell cleanly of cold seawater. Perfect technique can't rescue tired shellfish.
• •No cockles where you are? Use 1.5kg small live Manila or littleneck clams. Scrub them, purge them the same way, and allow 4 to 6 minutes for them to open. The meat will be firmer and the dish is then almejas a la marinera, which is no disgrace and no pretence.
• •Ten grams of flour is enough. It binds the oil, wine, and shellfish liquor into a light sauce; a generous spoonful turns the pan gluey and smothers the cockles.
• •Use a dry, unoaked Albariño or Ribeiro if you can, and serve the rest alongside. Any clean dry white wine works, but a sweet or heavily oaked bottle will flatten the briny taste.
• •Canned cockles belong cold on their own, perhaps with a little vinegar or lemon. Don't substitute them here. They are already cooked and cannot provide the fresh liquor on which this sauce depends.
• •These are best eaten immediately. Refrigerate leftovers within 2 hours, keep them covered for no more than 1 day, and warm them only until heated through. A second hard cooking makes them tough.

Advance Preparation

• •Keep live cockles for up to 12 hours in a colander set over a bowl in the coldest part of the refrigerator, loosely covered with a damp cloth. Don't seal them in plastic and don't leave them submerged overnight.
• •Begin purging 2 hours before cooking. Once purged and rinsed, keep the cockles cold and cook them promptly rather than returning them to water.
• •The onion can be diced and the parsley chopped up to 4 hours ahead; refrigerate them separately in covered containers. Mince the garlic shortly before cooking.
• •Don't open the cockles ahead of the meal. The sauce base takes less than 20 minutes, and the shellfish need to go from pan to table.

Frequently Asked Questions

Nutrition Information

1 serving (about 220g)