Why Harbour Cooking Works on a Home Hob

Walk along the quay at any small fishing port in Cornwall, Northumberland or the west coast of Scotland and you'll find the same lunch in a hundred variations: a pot of whatever came off the boats, simmered with potatoes, onions and whatever herbs were within reach. It's a dish built on economy and patience rather than skill, which is exactly why it transfers so well to a domestic kitchen.

The great Mediterranean versions — bouillabaisse, cacciucco, caldeirada — are magnificent, but they demand a long list of ingredients and quite a lot of nerve. A fisherman's stew for a Tuesday night needs none of that. You want a decent base, waxy potatoes that will thicken the broth as they cook, a kilo of shellfish and a few fillets of something affordable. Half an hour on the hob, bread on the side, and you have a meal that tastes far more expensive than it was.

What Goes Into the Pot (And What to Leave Out)

The base is where the flavour lives, so don't rush it. For four generous bowls you'll want:

• 500g waxy potatoes — Charlotte, Nicola or Jersey Royals — peeled if you like, cut into 2cm chunks
• 1 large onion and 1 leek, both sliced thinly
• 2 cloves of garlic, sliced rather than crushed so they don't burn
• 1 small bulb of fennel if you can get one, or a stick of celery in its place
• 400g tin of chopped tomatoes and a teaspoon of smoked paprika
• 150ml dry white wine or a splash of vermouth
• 600ml fish stock, from a cube is perfectly acceptable
• A bay leaf, a few sprigs of thyme and a good handful of flat-leaf parsley stalks

What you leave out matters too. Skip anything that will muddy the broth: no cheese, no cream until the very end and only if you fancy it, and no heavy root vegetables like swede or carrot, which will bully the fish. Olive oil and butter together give you the best of both — the butter for flavour, the oil to stop it catching.

Choosing Your Fish and Shellfish Well

Ask your fishmonger what's cheap and good that day, and be honest that you're making a stew — they'll point you towards the right things rather than the showpiece fillets. Coley, pollack, whiting, pouting and gurnard are all excellent here and a fraction of the price of cod or halibut. Haddock works beautifully too, particularly the smoked variety, which gives the whole pot a gentle depth.

You want 600g of white fish in total, skinned and cut into large chunks — bigger than you think, roughly 5cm, so they hold together in the broth. Alongside that, 1kg of mussels. Rinse them under cold running water, pull off any beards and give any open ones a sharp tap on the worktop; if they don't close, bin them. Keep everything cold until the moment it goes in.

Building the Stew, Step by Step

Use your widest heavy-based pan or a shallow casserole. Soften the onion, leek, fennel and garlic in a good glug of olive oil and a knob of butter over a low-to-medium heat for ten minutes until everything is slippery and sweet but not coloured. Stir in the smoked paprika and cook for a minute more, then pour in the wine and let it bubble down for two or three minutes.

Add the tomatoes, stock, potatoes, bay and thyme. Bring to a simmer, cover loosely and cook for 15 minutes until the potatoes are just tender when prodded with a knife — they should still have a little resistance. Taste and season now, not later, because the mussels will add salt of their own.

Lay the fish chunks on top of the potatoes rather than stirring them in, tuck the parsley stalks among them, then scatter the mussels over the lot and clamp the lid on. Cook for five minutes, give the pan a gentle shake rather than a stir, and check. The fish should be opaque and flaking, and the mussels open. If any mussels stay shut, discard them. Scatter with chopped parsley and serve immediately.

Serving It the Way Coastal Kitchens Do

Warm bowls, a slice of sourdough or a chunk of crusty white loaf, and a small dish of good mayonnaise thinned with lemon juice on the side. Some people like a spoonful of rouille or a smear of garlic mayonnaise stirred into the broth at the table, which thickens it slightly and lifts everything. A squeeze of lemon over the top is essential.

To drink, a Muscadet, Picpoul or dry Albariño does the job, and a light red served chilled — a young Gamay or a Portuguese Vinho Verde tinto — is a happy match if you'd rather. If there's no wine in the house, sparkling water with lemon is better than a sweet soft drink, which will fight the fish.

Making It Midweek and Making It Last

This is a stew that rewards a little forward planning. Make the base a day ahead up to the point where the potatoes go in, cool it quickly and refrigerate; then it's 20 minutes from fridge to table on a weeknight, which is hard to beat after a long day.

Leftovers will keep for two days in the fridge, but be careful with reheating: warm it gently in a covered pan with a splash of stock or water, and don't let it boil hard or the fish will break up. Do not refreeze a stew you've made from frozen fish, and if you froze the finished dish, eat it within a month.

Above all, cook it to your own coast. Swap the mussels for clams or a handful of prawns, use cider instead of wine in the West Country, or stir through a spoonful of double cream if you're feeling generous. The formula is forgiving, and that's precisely the point.