Most guides tell you salmon takes four to six minutes per side. That range is so broad it borders on useless. The thickness of your fillet, whether the skin is on, the heat of your pan, and the type of salmon you bought all matter more than any generic timer. You need the variables, not the average.
How Long to Cook Salmon on the Stove
Salmon is expensive. A good piece from a British fish counter or a farm shop that sources Scottish or Irish salmon costs real money. Overcooking it turns that investment into something dry and disappointing. Undercooking it leaves you uncertain whether it is safe to eat, and that uncertainty ruins the meal. If this interests you, how to cook chuck steaks: the proper british guide goes into more detail.
The difference between perfect salmon and ruined salmon is about ninety seconds. That is not much margin. Understanding what happens in the pan, and why, gives you control. You stop relying on timers and start reading the fish itself. That skill matters more than any recipe.
When you buy salmon from a local producer or a fish counter that sources direct, you are starting with better quality. The flesh is firmer, the colour is clearer, and the fat content is usually higher. That fat protects the fish during cooking, but it also means the fillet behaves differently to something that has been frozen and thawed or stored poorly. Good salmon deserves good cooking. Knowing how long to cook salmon on the stove properly means you honour what you paid for. If this interests you, how long to cook chicken thighs in a slow cooker goes into more detail.
Getting Started
Start with the fillet itself. Measure the thickest part. This is not fussy. Use your finger. If the fillet is about two centimetres thick at its deepest point, you are in the standard range. Thicker fillets need longer. Thinner tail ends cook faster. If your fillet tapers significantly, you can fold the thin tail under itself to create a more even thickness, or accept that one end will be more cooked than the other.
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Take the salmon out of the fridge fifteen minutes before you cook it. Cold fish hitting a hot pan causes the outside to overcook before the inside warms through. Room temperature fish cooks more evenly. Pat it dry with kitchen paper. Water on the surface steams the fish instead of letting it sear, and steam does not create the crust you want.
Season both sides with salt. I do this just before the fish goes in the pan. Some people salt earlier and let it sit, which firms the flesh slightly, but for stovetop cooking the difference is marginal. Pepper burns at high heat, so add it after cooking if you want it.
Choose a heavy-based frying pan. Cast iron or stainless steel both work well. Non-stick is fine but you lose some of the crust. The pan needs to hold heat evenly. A thin pan creates hot spots and the fish cooks unevenly.
Heat the pan over medium-high heat for two minutes. Add a thin layer of oil with a high smoke point. Rapeseed oil works. So does sunflower oil. Olive oil is fine if you keep the heat moderate. The oil should shimmer but not smoke. If it smokes, the pan is too hot and the outside of the salmon will char before the inside cooks.
Practical Considerations
Skin-on fillets are easier to cook well. The skin protects the flesh from direct heat and creates a barrier that slows cooking. Place the fillet skin side down first. Press it gently with a spatula for the first ten seconds to prevent it curling. The skin will curl because the heat contracts the proteins, and if you do not press it flat, the fillet will cook unevenly.
For a standard two-centimetre fillet with skin on, cook it skin side down for about four minutes. You want the skin crisp and the flesh to turn opaque about two-thirds of the way up the side of the fillet when you look at it from the edge. The top will still look translucent and darker. Flip it carefully. Cook the flesh side for one to two minutes. That is all. The residual heat will finish the centre.
If the fillet is skinless, the timing changes slightly. You lose the protective layer, so the flesh is in direct contact with the pan. Start with three minutes on the first side, then two on the second. The flesh is more delicate without skin, so flip it gently. A thin fish slice works better than tongs, which can break the fillet.
Thick fillets, anything over three centimetres, need a different approach. Sear both sides as usual, but finish them in a moderate oven at around 160 degrees Celsius for five to seven minutes. Trying to cook a thick fillet entirely on the stovetop usually means burning the outside to get the centre cooked. The oven provides even ambient heat that finishes the job without the risk.
The internal temperature you are aiming for is about 50 to 55 degrees Celsius if you like your salmon medium-rare in the centre, which many people do. At this temperature the flesh is opaque at the edges, slightly translucent in the very middle, and still moist. If you prefer it fully cooked through, aim for 60 degrees. Beyond that it starts to dry out. A probe thermometer removes guesswork, but you can also press the fillet gently with your finger. If it feels firm with a little give, it is medium. If it feels very soft, it needs more time. If it feels solid, it is overdone.
Carryover cooking is real. Salmon continues to cook after you take it out of the pan. The centre temperature can rise by three to five degrees while it rests. Pull the fillet off the heat just before you think it is done. Let it sit for a minute or two. This resting time also lets the muscle fibres relax, which makes the texture better.
Butter added to the pan in the last minute improves flavour. Tilt the pan slightly and spoon the melted butter over the top of the fillet as it finishes. This is called basting. It adds richness and helps the top surface cook a little more gently. You can add herbs to the butter at this stage. Thyme works. So does dill.
If you are cooking multiple fillets, do not crowd the pan. Each piece needs space around it or the temperature drops and the fish steams instead of searing. Cook them in batches if necessary. Keep the first batch warm in a low oven while you finish the rest.
Adjusting for Different Cuts
A salmon steak, which is a cross-section through the body with the backbone still in, cooks differently to a fillet. The bone conducts heat, so the flesh nearest the bone cooks faster. Steaks are usually thicker, so they need longer overall. Expect five minutes per side for a standard steak, and consider finishing in the oven if it is particularly thick.
Tail fillets are thin and taper sharply. They cook fast, often in under six minutes total. The thin end will always be more done than the thick end. Accept this or cut the tail off and cook it separately for less time.
Salmon portions sold as loins are usually centre-cut pieces with even thickness. These are the easiest to cook consistently because there is no taper. If you are buying from a fish counter and you can choose, ask for a centre-cut piece if you want predictable results.
Regional and Seasonal Variations
Scottish salmon dominates the British market, and for good reason. The farms are generally well-managed, the cold water produces firm flesh, and the supply is reliable. Organic Scottish salmon, particularly from producers certified by the Soil Association, tends to have better fat content and flavour. The farming practices affect how the fish cooks. Higher-quality salmon with more intramuscular fat stays moist longer, which gives you slightly more leeway with timing.
Irish salmon is also common and of similar quality. The differences are subtle. Both are farmed in cold, clean water and both behave the same way in the pan. If you are buying from a farm shop or fish counter that sources direct, ask where the salmon came from. Knowing the origin tells you something about freshness and handling.
Wild salmon is rare in Britain and seasonal. It appears briefly in summer, mostly from Scotland and occasionally from rivers in the west of England and Wales. Wild salmon is leaner than farmed, which means it dries out faster. Reduce your cooking time slightly. Wild salmon also has a firmer texture and a more pronounced flavour. It costs significantly more and it is harder to find, but if you see it at a farmers market or a specialist fishmonger, it is worth trying. Cook it carefully. You get less margin for error because of the lower fat content.
Trout fillets cook almost identically to salmon. The flesh is similar, the fat content is comparable, and the timing is the same. If you can get fresh trout from a local farm, treat it exactly as you would salmon. Brown trout and rainbow trout both work. Sea trout, which is a brown trout that migrates to the sea, is even closer to salmon in texture and flavour.
Seasonality does not affect salmon much because most of it is farmed and available year-round. But the condition of the fish you buy varies. Summer heat means fish spoils faster, so check for freshness carefully. The flesh should be firm, the smell should be clean and mild, and the colour should be bright. In winter, the fish keeps better but transport can be slower if weather disrupts supply. Freshness matters more than the calendar.
In Practice
I have burned salmon more times than I can count, usually by walking away from the pan or setting the heat too high. The lesson is always the same. Stay close. Salmon cooks fast and the window between perfect and overdone is narrow. If you are cooking other parts of the meal, cook them first and keep them warm. Salmon should be the last thing you cook.
The skin is worth eating if it is cooked properly. Crisp, well-seasoned salmon skin tastes good and it adds texture. To get it crisp, the pan must be hot enough and the skin must be dry. If the skin sticks to the pan, let it cook longer before you try to flip it. It will release when it is ready. Forcing it tears the fillet.
Buying salmon from a farm shop or a fish counter that sources locally usually means the fish is fresher and handled better. The difference shows up in the pan. Fresh salmon holds together better, the flesh is firmer, and the flavour is cleaner. Salmon that has been sitting around or frozen and thawed falls apart more easily and the texture suffers. Supporting local fish suppliers also means you can ask questions. Where did this come from? When did it arrive? How was it stored? Those answers matter.
Cooking salmon well does not require fancy equipment or complicated techniques. A decent pan, moderate heat, and attention are enough. The skill is in reading the fish as it cooks. Look at the colour change on the side of the fillet. Feel the firmness with a gentle press. Smell it. Burning fish smells obvious. You learn these cues by cooking salmon more than once and paying attention each time.
Pairing salmon with simple sides makes sense. It is rich and fatty, so acidic or bitter vegetables balance it. Greens like chard or kale work. So do roasted roots. Potatoes are fine but they do not contrast much. If you are cooking a joint of pork or other meat alongside, the principles of heat control and timing apply across proteins. Understanding one helps with the others.
There’s more where this came from. Browse all our meat, eggs, dairy and livestock guides, or dip into the rest of our cooking and preserving guides.
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If you would rather buy direct, our Fishmongers and Seafood Suppliers page is a good place to start.
Cooking with the seasons? Our Growers’ Calendar, included with paid Food Lover and Supplier memberships, shows what is being harvested each month, so you always know what is at its best.
Frequently Asked Questions
How do I know when salmon is cooked through?
The flesh turns opaque and lighter in colour as it cooks. Check the thickest part by gently flaking it with a fork. If it separates into flakes and the inside is opaque with just a slight translucency in the very centre, it is done. If you prefer it fully cooked, wait until the centre is completely opaque. A probe thermometer reading 60 degrees Celsius confirms it is cooked through. The flesh should feel firm but still have some give when you press it gently.
Can I cook frozen salmon straight from the freezer?
You can, but the results are not as good. Frozen salmon releases more water as it cooks, which interferes with searing and makes it harder to get a good crust. The texture also suffers. If you must cook it from frozen, lower the heat slightly and expect it to take about twice as long. Better to thaw it in the fridge overnight, pat it dry thoroughly, and cook it as you would fresh salmon. The extra time is worth it.
Why does my salmon stick to the pan?
The pan is either not hot enough or the fish is not dry enough. Water on the surface of the fillet creates steam, which prevents a proper sear and makes sticking worse. Pat the salmon completely dry before seasoning it. Make sure the pan is properly preheated and the oil is shimmering. If the salmon still sticks, leave it alone for another thirty seconds. It will release naturally when the proteins have set and formed a crust. Trying to flip it too early guarantees sticking.
Should I remove the skin before or after cooking?
Cook it with the skin on and remove it after if you do not want to eat it. The skin protects the delicate flesh during cooking and makes flipping easier. It also helps the fillet hold its shape. If you cook skinless salmon, it is more fragile and you need to be gentler. Crisp skin tastes good, though, so consider leaving it on and trying it. Season it well and make sure it gets properly crisp. You might change your mind about eating it.
What is the white stuff that comes out of salmon when cooking?
That is albumin, a protein that coagulates when heated. It is harmless and it does not affect flavour, but it looks unappealing. Albumin appears more when the fish is cooked at high heat or when it is overcooked. Brining the salmon in salty water for fifteen minutes before cooking reduces it, and cooking at moderate rather than high heat also helps. Pat the fillet dry before cooking. You cannot eliminate it entirely, but you can minimise it. Wipe it off gently with kitchen paper if it bothers you.
Can I cook salmon in butter instead of oil?
Butter burns at the temperatures you need for a good sear, so start with oil and add butter towards the end. Heat the pan with oil, cook the salmon mostly through, then add a knob of butter in the last minute and baste the fish with it as it finishes. This gives you the flavour of butter without the burnt milk solids. If you want to cook entirely in butter, use clarified butter or ghee, which have higher smoke points. Regular butter on its own from the start will burn and leave bitter flavours on the fish.
How long to cook salmon on the stove if the fillet is very thick?
For fillets over three centimetres thick, sear both sides on the stovetop for about three minutes each, then transfer the pan to an oven preheated to 160 degrees Celsius. Finish it there for five to seven minutes, depending on thickness. This combination method prevents the outside from burning while the centre is still raw. Check the internal temperature with a probe if you have one. Thick fillets are harder to judge by eye alone, and the oven provides the even, gentle heat they need to cook through properly without drying out.
Start with decent salmon, keep the heat steady, and stay close to the pan. The fish will tell you what it needs if you pay attention. Find a farm shop or a fish counter that sources well, and the rest gets easier.
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Author: Isla Harper
Isla writes about rural life, farm shops, and discovering the best places to buy directly from producers. She enjoys exploring local markets, small farms, and independent growers, sharing stories that highlight the people behind the food. Her work helps readers find trusted places to shop while celebrating the character and community of Britain’s farming landscape.
