Portuguese Stuffed Clams With Chouriço and Breadcrumbs

Portuguese stuffed clams are baked in their shells with a savory filling of chopped clam, chouriço, onion, garlic, herbs, and breadcrumbs. Recipes vary by region and family; this version balances smoky sausage and bright lemon in a crisp-topped appetizer that can be prepared ahead and baked just before serving.

Ingredients

3 lb (1.36 kg) littleneck or Manila clams, scrubbed, with shells closed or closing when tapped
1 cup (120 g) fine dry breadcrumbs, divided
4 oz (113 g) Portuguese chouriço, casing removed and finely diced; Spanish chorizo is a practical substitute, with a slightly different paprika-forward flavor
2 tbsp (30 ml) olive oil
1 small yellow onion, about 1 cup (150 g) finely chopped
2 garlic cloves, finely chopped
¼ tsp red pepper flakes
¼ cup (60 ml) dry white wine or clam broth
2 tbsp (8 g) chopped fresh parsley, plus more to serve
1 tbsp (15 ml) lemon juice, plus lemon wedges to serve
¼ tsp freshly ground black pepper
¼ tsp fine salt, or to taste, depending on the saltiness of the clams and sausage
2 tbsp (28 g) unsalted butter, melted

Instructions

Clean the clams. Discard any with cracked shells or shells that remain open when tapped. Scrub the rest under cold running water. If they are sandy, soak them in a large bowl of cold, lightly salted water for 20 minutes, then lift them out so grit stays in the bowl. Do not pour the sandy water over the clams.
Steam until they open. Put the clams in a large lidded pot with the white wine or clam broth and ¼ cup (60 ml) water. Cover and cook over medium-high heat for 5–8 minutes, checking as they open. Transfer opened clams to a tray with tongs; cover and continue cooking any closed ones for another 2–3 minutes. Discard clams that remain closed. Save the cooking liquid and strain it through a fine-mesh sieve lined with a damp paper towel to catch grit.
Prepare the shells and clam meat. When cool enough to handle, remove the clam meat and finely chop it. Separate the shells into halves and keep the deeper halves for filling. Arrange them on a rimmed baking sheet, using crumpled foil to steady them if needed. Measure ½ cup (120 ml) strained clam liquid; add water if there is not enough.
Cook the filling. Heat the olive oil in a skillet over medium heat. Add the chouriço and cook for 3–4 minutes, stirring, until it releases some fat and begins to brown. Add the onion and cook for 4 minutes until softened. Stir in the garlic and red pepper flakes for 30 seconds. Add the chopped clam, ½ cup (120 ml) clam liquid, parsley, lemon juice, pepper, and salt. Simmer for 2 minutes, then remove from the heat.
Finish the stuffing. Stir ¾ cup (90 g) breadcrumbs into the clam mixture. It should be moist enough to hold together but not soupy; add more of the remaining breadcrumbs if needed. Spoon the filling into the deeper shells, mounding it lightly. Mix the remaining ¼ cup (30 g) breadcrumbs with the melted butter and sprinkle over the tops.
Bake and serve. Heat the oven to 400°F (200°C). Bake the stuffed shells for 10–12 minutes, until the tops are golden and the filling is steaming hot. For seafood safety, the USDA FSIS safe minimum internal temperature for fish and shellfish is 145°F (63°C); check the center of the filling with a food thermometer. If the tops brown before the filling reaches temperature, cover loosely with foil and continue baking. Serve hot with parsley and lemon wedges.

Tips

Use fresh, live clams and cook them promptly. If a shell is cracked, or an open shell does not close when tapped before cooking, discard it. Throw away any that stay closed after steaming.
Clam liquid can be quite salty. Taste the filling before adding salt, and use unsalted butter so you can control the seasoning.
For a less spicy filling, omit the red pepper flakes. If using Spanish chorizo instead of Portuguese chouriço, choose a cured sausage and dice it small so it blends into the stuffing.
Keep the filling and shells steady on a rimmed tray. Overfilling can make the topping fall off, while too much liquid makes the crumbs soggy.

Serving Suggestions

Serve the clams hot as a starter or party snack, with lemon wedges for squeezing and a simple green salad to balance the rich filling. Crusty bread is useful for any clam broth or juices on the plate. For a larger meal, pair them with boiled potatoes, rice, or grilled vegetables. Set out a small plate for empty shells and provide napkins, since these are easiest to eat by hand.

Variations

For a milder, sausage-free filling, leave out the chouriço and add 1 tablespoon (15 ml) more olive oil; increase the parsley or add 1 tablespoon (4 g) chopped cilantro for a fresh note. A pinch of smoked paprika can replace some of the sausage’s smoky flavor, though it will not reproduce its texture. For extra richness, stir 2 tablespoons (30 ml) cream into the filling, reducing the clam liquid by the same amount. Gluten-free breadcrumbs work well in equal measure; check the sausage label for gluten-containing ingredients.

Storage and Reheating

Refrigerate cooked stuffed clams within 2 hours, in a covered container, and use within 3–4 days. For better texture, store the filling and shells separately if they have not yet been baked; refrigerate both promptly and assemble within 1 day. Reheat cooked clams in a 350°F (175°C) oven until the center reaches 165°F (74°C), checking with a food thermometer. They may take about 10–15 minutes from chilled; cover loosely with foil if the breadcrumb topping is browning too quickly. Avoid leaving seafood at room temperature for more than 2 hours, or 1 hour when the temperature is above 90°F (32°C). Freezing is possible, but can soften the clam texture; freeze promptly in an airtight container for up to 2 months and thaw in the refrigerator before reheating.

Frequently Asked Questions

Can I make Portuguese stuffed clams ahead?
Yes. Steam the clams, prepare the filling, and fill the shells up to 1 day ahead. Cover and refrigerate promptly, then add the buttery crumb topping just before baking. Bake until steaming hot and the filling reaches 145°F (63°C).

Can I use frozen clams?
Use frozen clam meat if fresh clams are unavailable, but you will need clean, empty half-shells for stuffing. Thaw the meat in the refrigerator, drain it well, chop it, and replace the clam cooking liquid with bottled clam juice or seafood broth. Cook the filling until it reaches 145°F (63°C).

Why is my clam filling watery?
Clams release different amounts of liquid, and the cooking broth may be thin. Strain it carefully, measure the amount in the recipe, and add breadcrumbs a spoonful at a time until the filling holds its shape. Do not add all the broth if the mixture already looks wet.

Do I have to use the shells?
No. Divide the filling among small ovenproof ramekins or a shallow baking dish, top with the buttery crumbs, and bake at 400°F (200°C) until browned and the center reaches 145°F (63°C). Shells give the traditional look and individual portions, but are not essential.

How can I tell whether clams are safe to eat?
Before cooking, choose live clams with intact shells that close when tapped. After steaming, discard any that have not opened. Cook the stuffed filling to 145°F (63°C), measured with a food thermometer, and refrigerate leftovers within 2 hours.

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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