Ingredient

Mussels

Mussels are among the cheapest and fastest shellfish there is — five minutes in a hot covered pan and they are done, in a liquid that has become a sauce on its own. Most of the work is in the sorting and cleaning beforehand, and that part matters.

Cleaning and checking them

This is where the care belongs. Do it just before cooking, not hours ahead.

1. Tip them into a colander and rinse under cold running water, rubbing off any grit or barnacles.
2. Pull off the beard — the wiry tuft protruding from the shell — by tugging it firmly towards the hinge. Not all farmed mussels have one.
3. Check each one. Discard any with cracked or broken shells.
4. Any mussel that is open should close when you tap it sharply or squeeze it. If it stays open, discard it.
5. Discard any that feel unusually heavy, which are often full of sand rather than mussel.
6. Keep them cold and covered with a damp cloth until you cook them, and never in sealed plastic or standing in fresh water — they are alive and both will kill them.
7. Cook them the day you buy them. FoodHQ does not publish safe cooking temperatures or keeping times. Those are set by a food safety authority rather than by a cookery writer, and in the UK the Food Standards Agency is the one to consult.

Why they open, and what that does and does not tell you

A live mussel holds its shell shut with a strong adductor muscle. Heat destroys that muscle and the shell springs open. So opening is essentially a sign that the mussel has been cooked.

The familiar advice is to discard any that do not open. It is sound as a rule of thumb and worth knowing that it is a rough proxy rather than a precise test: a mussel can occasionally stay shut simply because its muscle is unusually strong or because it did not get enough heat. Conversely, a mussel that was already dead before cooking may open perfectly well.

The more useful control is the one you do before cooking — checking that each mussel is alive and sound, by whether it closes when tapped and whether the shell is intact. That is where the real sorting happens.

On safety generally, mussels and other bivalves are filter feeders and their handling carries genuine questions about sourcing and storage. The Food Standards Agency is the authority on those rather than a cookery page.

Cooking them

Moules marinière, and the pattern every other mussel dish follows.

1. Soften finely chopped shallot and garlic in butter in a large pan with a tight lid.
2. Add a glass of dry white wine — or cider, or beer — and bring it to a hard boil for a minute to cook off the raw alcohol.
3. Tip in the mussels, clamp the lid on, and turn the heat up high.
4. Shake the pan every so often. They cook in steam, and shaking redistributes them so the ones at the top get their turn.
5. After three to five minutes lift the lid. Once most are open, they are done. Do not keep cooking to open the last few — you will make the rest rubbery.
6. Lift the mussels out with a slotted spoon into a warm bowl.
7. Finish the liquid: reduce it slightly if it is thin, add a splash of cream if you want, stir in chopped parsley, and taste before adding any salt — mussels bring plenty of their own.
8. Pour it over and serve with bread or chips. Leave the last spoonful in the pan, since any grit will have settled there.

Variations

• Marinière — white wine, shallot, parsley, butter. The default.
• Normande — cider and cream, with apple.
• Provençale — tomato, garlic, herbs, sometimes fennel.
• Thai — coconut milk, lemongrass, ginger, chilli, lime, coriander.
• Spanish — chorizo, paprika, sherry, tomato.
• Belgian — beer instead of wine, and chips on the side, which is the correct accompaniment.
• Grilled or barbecued, opened over direct heat with garlic butter dropped in.
• Picked out of the shells and used in a chowder, a pasta, a paella or a fish pie.

Common questions