What canned cockles are
Cockles are small bivalve shellfish, similar to clams but with a ribbed, rounded shell and a sweet, briny, slightly chewy flesh. They are popular in British, Spanish, and Portuguese cooking. Canned or tinned cockles are usually cooked and packed in brine, oil, or sometimes sauce, ready to eat. Jarred cockles, especially in the UK, are often packed in vinegar, which gives them a sharp, pickled taste. Because they are already cooked, they are a handy pantry seafood.
What are cockles called in the USA?
Cockles are not as common in the US as clams, and names vary. In many US shops, small bivalves similar to cockles are sold simply as small clams, and the term “cockle” itself is mostly seen on imported tinned products. If you are looking for them, check the tinned seafood or specialty aisle, international food stores, or online shops that sell conserva-style tinned fish. If you cannot find cockles, small clams are the closest widely available alternative.
How to eat tinned cockles
Tinned cockles can be eaten straight from the can with a fork, but a few simple steps improve them:
- Drain and taste. The packing liquid is salty and briny. Reserve some for cooking if the recipe calls for it.
- Add acid. Lemon juice, lime juice, or a splash of vinegar brightens the flavor.
- Add something fresh. Herbs such as parsley or cilantro, sliced onion, or avocado balance the saltiness.
- Serve with something crunchy or starchy. Toast, crackers, crusty bread, or potatoes work well.
How to eat jarred cockles
Jarred cockles in vinegar are traditionally served as a snack with a splash of extra vinegar, white pepper, and bread and butter. They can also be drained and added to salads or eaten alongside chips. Rinse them briefly if the vinegar is too sharp for a given recipe.
Canned cockle recipes
Tinned cockle pasta
This simple dish follows a common published approach to canned-cockle pasta, similar to a clam sauce. It serves about 4.
- 16 oz (450 g) fettuccine or other long pasta
- 4 cans (about 4 oz each) cockles, drained, with the liquid reserved
- 3 to 4 cloves garlic, finely chopped
- 2 tablespoons butter and a few tablespoons olive oil
- Up to about 1 cup dry white wine
- Zest and juice of 1 lemon
- A handful of chopped parsley
- Black pepper
- Cook the pasta in well-salted water until just shy of al dente. Save a little pasta water.
- In a pan, warm the oil and butter and cook the garlic gently until fragrant, without browning.
- Add the white wine and some of the reserved cockle liquid and simmer briefly to reduce.
- Add the drained pasta and toss, adding pasta water as needed.
- Stir in the cockles near the end, just to warm them, so they stay tender rather than rubbery.
- Finish with lemon zest, lemon juice, parsley, and pepper.
Taste before adding any salt, since both the cockles and their liquid are salty.
Cockle ceviche-style salad
Drain tinned cockles and toss them with lime or lemon juice, finely sliced red onion, cilantro, a little olive oil, and salt if needed. Sliced avocado, minced ginger, or chili are easy additions. Because tinned cockles are already cooked, this is a cold salad rather than true raw-seafood ceviche. Serve with crackers, toast, or crunchy croutons.
Cockles on toast
Pile drained cockles on buttered toast with lemon, chili flakes, and herbs. This is a quick lunch or snack.
Rice or chowder add-in
Stir drained cockles into rice dishes, paella-style rice, or a simple chowder at the end of cooking so they only warm through.
For other pantry seafood projects, see our guides to dried prawns recipes and the dried oyster recipe.
Storing canned cockles
Unopened commercially canned or jarred cockles are shelf-stable; follow the date and storage directions on the label. Once opened, transfer any unused cockles and their liquid to a clean, covered glass or plastic container, refrigerate, and use within a couple of days. Do not store opened seafood in the open can. Discard cans that are bulging, leaking, or badly dented, and anything that smells unpleasant.
Are canned cockles good for you?
Cockles provide protein and are a source of minerals such as iron and vitamin B12, but nutrition varies by brand and packing. Canned and jarred versions can be high in sodium, and vinegar-packed jars add acidity. Shellfish is a common allergen, so avoid them if you have a shellfish allergy. If you have a health condition such as high blood pressure or are pregnant, check with your doctor or dietitian about shellfish and sodium. Read the label for ingredients and sodium amounts.
Can you can cockles at home?
Home canning of low-acid seafood is a higher-risk activity. Low-acid foods need to be processed in a pressure canner, using tested procedures, to guard against botulism. The National Center for Home Food Preservation publishes tested guidance for some seafood, but there is no widely available tested home process specifically for cockles that we can point to. We do not recommend improvising a recipe or using a water-bath canner for shellfish. If you want to preserve cockles or similar shellfish at home, consult NCHFP or your local extension office for their guidance. Otherwise, buying commercially canned cockles is the safe, convenient route.