These elaborate stuffed clams combine tender shellfish with a rich, croquette-style shrimp filling enclosed in crisp golden breading.
A colorful Basque piperrada, warm shellfish foam, and delicate potato crisps turn the dish into an impressive restaurant-style presentation.
Why You’ll Love This Recipe
- The filling combines clams and shrimp in a creamy, deeply savory mixture.
- Crisp breading contrasts with the tender shellfish filling.
- Sweet peppers and onions add freshness and color through the piperrada.
- The concentrated shellfish sauce reinforces the seafood flavor without overwhelming the clams.
- Its elegant presentation makes it especially suitable for celebrations and dinner parties.
Ingredient Notes
Large clams
Choose sturdy clams with shells large enough to hold the filling. Littleneck or cherrystone clams are practical choices in the United States.
Langostinos
The original Spanish ingredient can be replaced with good-quality large shrimp when langostinos or prawns are unavailable.
Piperrada
This Basque accompaniment combines slowly cooked onion with red and green peppers, lightly bound with tomato sauce.
American shellfish sauce
Shrimp shells, vegetables, tomato, brandy, rice, and fish stock create a concentrated sauce that can be served thick or transformed into foam.
Potato crisps
The garnish is made by drying a very thin layer of seasoned potato puree and gently frying it until light and crisp.
Expert Tips
- Discard clams with broken shells before cooking and any clams that fail to open after steaming.
- Strain the clam liquid carefully because even well-cleaned clams can release a small amount of sand.
- Chill the filling completely before shaping and breading so it remains firmly attached to the shells.
- Keep the shellfish sauce foam warm but never hot enough to cook the egg whites inside the siphon.
- Fry the clams in small batches so the oil temperature remains steady and the coating stays crisp.
Serving Suggestions
Serve two or three stuffed clams per person as an elegant first course, or offer a larger portion with piperrada as a seafood main dish.
Storage and Reheating
Store the cooked filling and piperrada separately in covered containers in the refrigerator for up to 2 days. Bread and fry the clams shortly before serving for the best texture. Refrigerate fried leftovers within 2 hours and reheat them in a 375°F (190°C) oven until hot and crisp. Do not store prepared sauce foam inside a charged siphon longer than recommended by the siphon manufacturer.
Frequently Asked Questions
Can I prepare the stuffed clams ahead of time?
Yes. Fill and bread the shells several hours in advance, refrigerate them on a covered tray, and fry them shortly before serving.
What can I use instead of langostinos?
Large shrimp are the easiest US substitute and provide a similar texture and mild shellfish flavor.
Do I need a culinary siphon?
A siphon is needed for the original foam presentation, but the thick American shellfish sauce can be served warm by the spoonful instead.
Why must the filling be chilled before breading?
Cooling firms the butter, flour, and milk mixture so the filling holds its shape and does not separate from the shells during frying.
CuisineBasque, Spanish CourseMain Course Yield5 servings NutritionApprox. 658 calories per serving
Ingredients
- For the clams and filling: 2.2 pounds (1 kg) large semi-cultivated clams; US alternative: large littleneck or cherrystone clams
- For the clams and filling: 2/3 cup (150 ml) fish stock
- For the clams and filling: 3 tablespoons (40 g) unsalted butter
- For the clams and filling: 10.6 ounces (300 g) onion, finely diced
- For the clams and filling: 8.8 ounces (250 g) peeled langostinos or large prawns, finely chopped; US alternative: large shrimp
- For the clams and filling: 1/3 cup (40 g) low-protein wheat flour; US alternative: all-purpose flour
- For the clams and filling: 1 cup (250 ml) whole milk
- For the clams and filling: 1/2 teaspoon (3 g) salt
- For the clams and filling: 1/4 teaspoon (0.5 g) ground nutmeg
- For the clams and filling: 1/4 teaspoon (0.5 g) ground white pepper
- For the clams and filling: 0.001 ml Tabasco sauce, as listed in the original recipe, or 1 very small drop to taste
- For breading: 2 1/2 tablespoons (20 g) low-protein wheat flour; US alternative: all-purpose flour
- For breading: 2 large eggs, beaten
- For breading: 2 tablespoons (10 g) fine dry breadcrumbs
- For the American sauce foam: 1 1/4 cups (300 ml) thick American shellfish sauce
- For the American sauce foam: 7 large egg whites
- For the garnish: 3.5 ounces (100 g) prepared potato crisps
- For serving: 1.1 pounds (500 g) prepared piperrada
- For serving: 1 teaspoon (1 g) finely chopped fresh parsley
- For the fish stock: 0.35 ounce (10 g) onion, roughly chopped
- For the fish stock: one-tenth of the green part of a leek
- For the fish stock: 0.1 g fresh parsley
- For the fish stock: 1.4 ounces (40 g) cleaned fish bones and heads
- For the fish stock: 2/3 cup (150 ml) cold water
- For the American shellfish sauce: 1.4 ounces (40 g) onion, sliced
- For the American shellfish sauce: 0.35 ounce (10 g) carrot, sliced
- For the American shellfish sauce: approximately one-twelfth of a leek, sliced
- For the American shellfish sauce: 1.4 ounces (40 g) plum tomato, diced
- For the American shellfish sauce: 1 tablespoon (12 g) white rice
- For the American shellfish sauce: 0.7 ounce (20 g) langostino or shrimp, shells included
- For the American shellfish sauce: 1 1/4 cups (300 ml) fish stock
- For the American shellfish sauce: 2 teaspoons (10 ml) brandy
- For the American shellfish sauce: 1/4 teaspoon (1.5 g) salt
- For the American shellfish sauce: 1 teaspoon (5 ml) sunflower oil
- For the potato crisps: 7 ounces (200 g) potato, peeled and cut into chunks
- For the potato crisps: 1/3 teaspoon (2 g) salt
- For the potato crisps: 1/2 teaspoon (1 g) ground white pepper
- For the potato crisps: 1 cup (250 ml) sunflower oil, for frying
- For the piperrada: 1.1 pounds (500 g) onion, thinly sliced
- For the piperrada: 1.1 pounds (500 g) green bell peppers
- For the piperrada: 3/4 cup plus 1 tablespoon (200 ml) mild olive oil
- For the piperrada: 1.1 pounds (500 g) red bell peppers
- For the piperrada: 1/3 teaspoon (2 g) salt
- For the piperrada: 1/3 cup plus 1 tablespoon (100 ml) tomato sauce
Instructions
- Begin with the fish stock. Place the cleaned fish bones and heads, onion, leek green, parsley, and cold water in a saucepan. Bring just to a boil, skim away any foam, and simmer gently for no more than 30 minutes. Strain carefully and reserve.
- Prepare the American shellfish sauce. Soften the onion and carrot in the sunflower oil over medium-low heat. Add the leek and continue cooking until tender, then add the diced tomato.
- Add the shrimp and shells to the vegetables and cook until aromatic. Carefully add the brandy and allow the alcohol to evaporate. Flambé only when it is safe to do so and the pan is away from overhead cabinets.
- Stir the rice and 1 1/4 cups of fish stock into the shellfish mixture. Cover and simmer for approximately 30 minutes. Blend until smooth, strain through a fine sieve, return it briefly to a boil, season with salt, and reduce until quite thick.
- Prepare the piperrada. Slowly cook the sliced onion in part of the mild olive oil until soft. Fry or sauté the green peppers until tender, then cool, peel if desired, and cut them into thin strips.
- Roast the red peppers at 350°F (180°C) until softened and blistered. Cover while cooling, remove the skins and seeds, and slice them into thin strips.
- Combine equal proportions of onion, green pepper, and red pepper. Stir in the tomato sauce, season with salt, and cook gently until the piperrada is tender and cohesive. Reserve 1.1 pounds for serving.
- Prepare the potato crisps. Boil the potatoes for about 25 minutes, drain thoroughly, and pass them through a potato ricer or food mill. Season the puree with salt and white pepper.
- Spread the potato puree in a very thin layer on lightly oiled parchment paper. Dry it overnight in a warm dehydrator or bake at 285°F (140°C) for approximately 25 minutes, until firm and dry.
- Break the dried potato sheet into irregular pieces. Fry the pieces gently in sunflower oil until expanded and crisp, then drain them on paper towels.
- Scrub and rinse the clams thoroughly. Place them in a wide covered pan with about 1/3 cup of the fish stock and steam just until the shells open. Discard any clams that remain closed.
- Remove the clam meat from the shells and reserve the shells. Finely dice the clam meat and strain the clam cooking liquid through a fine sieve to remove any sand.
- Melt the butter in a saucepan and gently cook the finely diced onion until translucent. Add the chopped shrimp and cook for a few minutes, then fold in the chopped clam meat.
- Sprinkle in the 1/3 cup of flour and cook while stirring to form a roux around the seafood mixture.
- Gradually add the milk and strained clam cooking liquid, stirring constantly. Continue cooking until the filling becomes thick and no raw flour flavor remains.
- Season the filling with salt, white pepper, nutmeg, and a very small amount of Tabasco.
- Spread the filling on a shallow tray and press food-safe plastic wrap directly against its surface. Refrigerate promptly until completely cold and firm.
- Spoon the chilled seafood filling into the reserved clam shells. Coat the filled side of each shell first in flour, then in beaten egg, and finally in breadcrumbs.
- Combine the thick American shellfish sauce with the egg whites. Blend well, season if necessary, and strain through a fine sieve.
- Transfer the mixture to a 1-liter culinary siphon, charge it with two nitrous oxide cartridges, shake thoroughly, and hold it in a warm water bath at approximately 122°F to 131°F (50°C to 55°C).
- Heat frying oil to approximately 350°F (175°C). Fry the stuffed clams in batches until crisp and golden, then transfer them to paper towels to remove excess oil.
- Warm the piperrada and arrange it in a ring or mound on each plate. Dispense some American sauce foam into the center.
- Arrange the fried stuffed clams beside the piperrada. Finish with chopped parsley and pieces of crisp potato garnish, then serve immediately.
Notes
The source recipe uses langostinos, a term commonly referring to large prawns in Spain. Large shrimp are the most practical equivalent in regular US supermarkets.
Large littleneck or cherrystone clams are suitable US alternatives to the large semi-cultivated clams specified in the original recipe.
Spanish harina floja is a relatively low-protein flour. Regular all-purpose flour works well for both the filling and breading.
American sauce in Spanish cooking is a concentrated tomato-based shellfish sauce and is unrelated to mayonnaise-based American-style sauces.
A culinary siphon and nitrous oxide cartridges are required for the original foam presentation. Without a siphon, serve a spoonful of the thick warm shellfish sauce instead.
The recipe's nutritional estimate includes the piperrada, fried potato garnish, breading, filling, and shellfish sauce.