Pan-frying salmon fillet correctly comes down to one decision: keep the skin in contact with a hot pan long enough for the fat between the skin and flesh to render out, then get out before the flesh overcooks. Most home cooks get one or the other wrong.
This recipe covers both. How to get genuinely crispy skin and a center cooked to a silky medium-rare. You pull the fish at 40°C (104°F) and let carry-over heat cook it just past the point where the proteins begin to set, leaving the center moist and semi-translucent rather than firm and flaky.
Served with mashed potatoes and your preferred way of cooking broccoli. This is a fast weeknight dinner that requires attention for about six minutes, and then it is done.
Why the skin-side method works
- Skin-side down, most of the time - The skin acts as a heat buffer between the direct pan heat and the delicate flesh proteins. Keeping the fillet skin-side down for roughly 75 percent of the cook time means the flesh cooks gently from the heat radiating up through the skin, while the exterior surface gets the direct contact it needs to crisp.
- The fat between skin and flesh renders at pan temperature - Salmon carries a layer of fat directly under the skin. Sustained contact with a hot pan drives that fat out through the skin, leaving the skin dry and crisping from the inside out. Pull it too early and the fat is still there - the skin stays soft and rubbery.
- Dry surface, dry pan - Surface moisture creates steam on contact with hot oil. Steam prevents browning, causes the skin to stick, and makes the oil spit. Patting the fillet dry with paper towels before it goes anywhere near the pan is the single step that solves three problems at once.
- Pull at 40°C (104°F) - Carry-over does the rest. Salmon proteins start to coagulate at around 42°C (108°F) and dry out above 60°C (140°F). For a silky medium-rare center you stop short of full doneness: pull the fillet at 40°C (104°F), and carry-over heat during a 3-minute rest carries the center just past 42°C - into the mid-40s°C (low-110s°F), where the proteins have only just begun to set. The center stays translucent and moist. Cook it to 52°C (125°F) and you get firm, fully cooked salmon - also good, just a different dish. Push past 60°C and it is dry.
- Cast iron or non-stick, not stainless - Both cast iron and non-stick give consistent surface contact across the fillet. Uncoated stainless steel requires a level of seasoning technique most home cooks are not set up for with fish. For pan-fried salmon at home, cast iron or non-stick is the right tool every time.
Salmon fillet vs salmon steak
A salmon fillet and a salmon steak are two different cuts and they cook differently.
A salmon fillet is cut lengthways from the fish - the flesh is removed from the spine in one boneless piece. It is the more common retail cut and what this recipe uses.
A salmon steak is a cross-section cut through the whole fish, with two pieces of fillet still attached to the spine and a bone running through the center. It requires slightly more attention to cook because the thinner fillet sections cook faster than the thicker loin at the center. The principles are the same - the timing differs.
Ingredients
- Salmon fillet, skin on - Because this recipe finishes the salmon medium-rare, use the freshest fish you can get: ideally sushi-grade, or fillets that have been previously frozen. Skin-on fillets are essential for this technique - the skin is what crisps and what protects the flesh during the cook. If using previously frozen, defrost in the fridge overnight and pat thoroughly dry before cooking. Atlantic salmon is the most available and works well. King salmon (Chinook) has higher fat content and is even more forgiving on heat. If you would rather cook the fish fully through, the method is identical - just pull at a higher temperature (see the FAQ).
- Neutral cooking oil or light olive oil - Use an oil with a smoke point high enough for a hot pan. Neutral vegetable oil, refined sunflower oil, or light (not extra-virgin) olive oil all work. Do not start with butter - it burns at the temperature needed to crisp the skin. Butter comes in at the end, off the heat, as the pan sauce.
- Butter, lemon, and flat-leaf parsley (for the pan sauce) - These three ingredients go in together after the fish comes out, with the pan off the heat. The residual heat in the pan is enough to melt the butter without browning it. The lemon cuts the richness. The parsley adds freshness. It is a 90-second sauce, not a separate recipe.
- Flaky sea salt - Season the skin side only before it goes into the pan. Salting the flesh side draws moisture to the surface, which is the opposite of what you want. Salt the skin at the last moment before cooking - not 10 minutes ahead.
See the recipe card for quantities.
How to pan-fry salmon fillet
- Dry the fillets thoroughly. Take each salmon fillet and press paper towels firmly against the skin and flesh on all sides. The surface should feel completely dry to the touch - not just damp-patted. Any residual moisture will turn to steam in the pan, which prevents crisping and causes sticking. If the fillets came straight from the fridge, let them sit on a wire rack at room temperature for 10 minutes first so the surface is not ice-cold when it hits the oil.
- Heat the pan until the oil just begins to smoke. Place your cast-iron skillet or non-stick frying pan over high heat and add enough oil to coat the base in a thin layer - roughly 2 tablespoons for a standard 28 cm (11 inch) pan. The oil is ready when it starts to shimmer and the first wisps of smoke appear. Do not add the salmon to a cold or warm pan. It must be hot or the skin will bond to the surface and stick.
- Season the skin side and place the fillet in the pan. Season the skin side with flaky salt just before it goes in. Lower the fillet into the pan skin-side down, tilting the pan slightly and placing the near edge in first so the oil runs away from you rather than toward you. Press the fillet gently flat with a fish slice for the first 20 seconds - this ensures full surface contact across the skin, which prevents the fillet from curling and leaving a strip of unrendered, soft skin in the middle.
- Cook on high for 1 minute, then reduce to medium. After 1 minute on high, turn the heat down to medium and continue cooking skin-side down. Do not move the fillet during this stage. You will see the color of the flesh change from deep pink-orange at the bottom to a lighter, more opaque pink working upward. When that color change has climbed roughly two-thirds of the way up the side of the fillet, the skin side is done.
- Flip once and cook briefly on the flesh side. Turn the fillet gently onto its flesh side. The skin should release cleanly - if it resists, it is not ready and needs another 30 seconds. Cook the flesh side for 30-45 seconds only. If you are using a probe, pull the fillet when it reads 40°C (104°F) at the thickest point. The center will still look quite translucent at this stage - that is correct for medium-rare. Carry-over heat during the rest carries the center just past 42°C (108°F), into the mid-40s°C.
- Rest the fillet off the heat for 3 minutes. Place the fillets skin-side up on a warm plate. Resting skin-side up keeps the skin dry and maintains its texture - placing it skin-side down on a plate traps steam underneath and softens it immediately. The rest is also when the center finishes: carry-over heat brings it just past the point where the proteins set, to a moist medium-rare. While the fish rests, make the pan sauce.
- Make the pan sauce. Remove the pan from the heat. Add 50 g (3.5 tbsp) of butter and let it melt in the residual heat - do not return to the burner. Squeeze in a small amount of fresh lemon juice and add a handful of roughly chopped flat-leaf parsley. A few grinds of black pepper. Tilt the pan to pool the butter and spoon it over the resting fillets. Serve immediately.
Tips for pan-fried salmon fillet
- Buy the freshest fish you can find - Salmon deteriorates quickly once out of the water, and it matters even more when the center is finishing medium-rare. Fresh salmon should smell clean and marine, not fishy or sour. The flesh should be firm and spring back when pressed lightly. If it smells at all ammoniated at the fishmonger, walk past it.
- Use a probe thermometer - It removes all the guesswork. The window is narrow: pull at 40°C (104°F) for a medium-rare center, and treat 60°C (140°F) as the overcooked ceiling. A probe takes the decision out of your hands. If you do not have one, insert the tip of a small knife into the thickest part of the fillet and hold it there for 3 seconds. Pull the knife out and touch the tip to the inside of your wrist: it should feel cool-to-lukewarm, not hot. Hot means overcooked.
- Do not crowd the pan - Each fillet needs enough space that steam can escape freely around it. A crowded pan drops the temperature and steams the fish instead of frying it. Cook in two batches if needed rather than squeezing four fillets into a pan built for two.
- Skin-side up when resting - This is the step most home cooks skip. Resting skin-side down on a plate immediately undoes the crisping. Rest skin-side up on a warm plate or a wire rack.
Troubleshooting pan-fried salmon
- The skin stuck to the pan and tore on the flip - This almost always means the pan was not hot enough when the fish went in, or the fillet was pulled before the skin had fully released. When skin is sticking, it is not ready to flip - leave it. A properly rendered skin will release from the pan on its own when it is done. If it is stuck, add 30 seconds more on medium heat before trying again. For next time: heat the pan longer before adding oil, and make sure the oil is smoking before the fillet goes in.
- The flesh is dry and crumbly - The fillet went past 60°C (140°F) at the center. Overcooked salmon is not recoverable, but it can be repurposed - flake it into pasta, fold it into fishcakes, or use it in a salmon salad where the texture is less noticeable. For next time: pull the fillet earlier. For a medium-rare center the flesh should still look clearly translucent when it comes off the heat. That is correct. Pull at 40°C (104°F) and let carry-over finish it.
- The skin is soft and rubbery, not crispy - Three causes, in order of likelihood: (1) the surface was not dry enough before cooking, (2) the pan was not hot enough, or (3) the skin was placed on a plate face-down while resting and steamed itself soft again. Soggy skin on the plate is usually cause 3 - rest it skin-side up.
- The center came out too rare for my taste - Medium-rare salmon is a deliberate finish, but it is not for everyone. If you want it more set, simply pull at a higher temperature: 50°C (122°F) off the heat will rest up to a fully cooked 52-54°C (125-129°F). The technique does not change - only the number on the probe.
- The fillet is curling up in the pan and not cooking flat - The skin is contracting faster than the flesh on contact with heat. Press the fillet flat with a fish slice for the first 20-30 seconds. Hold it firmly - it wants to curl, you want it flat. After 30 seconds the connective tissue relaxes and it will lie flat on its own.
Substitutes and variations
- Skin-off fillets - The technique still works without skin, but the heat buffer is gone. Cook flesh-side down first on medium heat for 3-4 minutes, then flip for 1-2 minutes depending on thickness. Watch the color change carefully - you lose the visual indicator the skin gives you.
- Other oily fish using the same method - Trout fillet, sea bass fillet, and mackerel fillet all follow the same skin-side-down, high-then-medium logic. Thinner fillets (mackerel) need roughly half the cooking time. Adjust by thickness, not by species.
- Dairy-free pan sauce - Replace the butter with extra-virgin olive oil and a generous squeeze of lemon. Add capers and flat-leaf parsley for a gremolata-style finish that works as well as the butter version.
- Herb variations on the pan sauce - Swap the flat-leaf parsley for tarragon (more anise-forward, French bistro direction), dill (Scandinavian direction, natural with salmon), or a spoonful of salsa verde stirred in off the heat instead of the butter sauce entirely.
- Heat - add chilli - Finish the butter sauce with a pinch of dried chilli flakes or a few drops of sriracha. Works particularly well if you are serving the salmon over spiced couscous rather than mashed potatoes.
- Asian-direction finish - Omit the butter sauce entirely. Rest the cooked fillet and finish with a drizzle of toasted sesame oil, a few drops of soy sauce, and thinly sliced spring onion. Serve over rice or alongside bok choy.
Storage and make-ahead
Refrigerator: Cooked salmon keeps for up to 2 days in an airtight container. The skin will soften on storage - there is no way around it. Eat the skin immediately if crispness matters.
Reheating: Reheat gently in a pan over low heat with a small amount of butter or oil, skin-side down, for 2-3 minutes only. Microwaving overcooks the salmon and causes the flesh to steam in its own moisture. If eating cold, flake the leftover fillet directly into a salad - the cold temperature suits it. Note that a medium-rare fillet is best eaten fresh. If you are storing and reheating leftovers, the reheated center will set further toward fully cooked.
Make-ahead: Pan-fried salmon does not benefit from being made ahead. The skin crisping is a last-minute process and does not hold. The pan sauce can be made 30 minutes ahead and rewarmed gently before serving, but the fish itself should be cooked to order.
Freezer: Not recommended for cooked salmon - the texture degrades significantly on freezing and thawing. Freeze raw salmon instead, then defrost overnight in the fridge before cooking.
What to serve with pan-fried salmon fillet
Salmon is a fatty, rich fish. The sides that work best either cut that richness with acid or starch, or provide a textural contrast.
Sides
Salads
Frequently asked questions
Pull the fillet from the pan when a probe reads 40°C (104°F) at the thickest point. Carry-over heat during a 3-minute rest carries the center just past 42°C (108°F) - into the mid-40s°C - for a silky, just-set medium-rare. If you prefer salmon fully cooked through, pull at 50°C (122°F) instead and rest to around 52-54°C (125-129°F). No probe? Insert a small knife into the thickest part for 3 seconds, then touch the tip to the inside of your wrist. Cool-to-lukewarm means medium-rare. Hot means overcooked.
Keep sauces light and acidic - salmon is a fatty fish and needs something with brightness to balance it. In this recipe the pan sauce is garlic herb butter with lemon and parsley. Other options that work well are gremolata or salsa verde. A white wine cream sauce also pairs well with pan-fried salmon, though it adds richness rather than cutting it.
No. Cooking salmon directly from frozen causes the exterior to overcook before the interior has thawed, leaving you with dry, pale flesh on the outside and a cold or raw center. Defrost the fillet in the fridge overnight and cook it when fully thawed. Do not defrost at room temperature - the surface can reach unsafe temperatures while the center remains frozen.
Curing salmon is a different process from pan-frying - the fish is never cooked with heat. Instead, it is packed in a salt and sugar cure and left in the fridge for 24-48 hours. I have a full recipe and video covering <a rel="noreferrer noopener" href="https://www.pantsdownapronson.com/cured-salmon/" target="_blank">curing salmon</a> on the site.
Every 100 g of skin-on salmon fillet contains approximately 104 calories. A typical restaurant-portion fillet of 180-200 g runs roughly 185-210 calories before the pan sauce. The butter sauce adds approximately 90-120 calories per serving depending on how much is spooned over.
Yes, if they are present. Run your fingertips along the center line of the flesh side - you will feel the pin bones as small hard points. Remove them with fish tweezers or needle-nose pliers by gripping each bone as close to the flesh as possible and pulling in the direction it is angled, not straight up. Pulling straight up tears the flesh. Most supermarket fillets are already pin-boned, but it is worth checking.
Usually one of three causes: the pan was not hot enough when the fish went in, the skin surface was not completely dry, or the fillet was flipped before the skin had finished rendering. A fully rendered salmon skin releases from the pan cleanly without force. If it is sticking, leave it. Give it another 30 seconds and try again. Forcing a flip too early tears the skin off.
This recipe targets a medium-rare center: pull the fillet at 40°C (104°F) and let carry-over heat take it just past 42°C (108°F), into the mid-40s°C, after a 3-minute rest. Above 60°C (140°F) the proteins tighten and the flesh becomes dry and crumbly. A medium-rare center means the salmon is not fully cooked - use sushi-grade salmon or fillets that have been previously frozen, since freezing addresses parasite risk, and serve it this way only to healthy adults. The USDA recommends cooking fish to a minimum internal temperature of 63°C (145°F). If you are pregnant, serving young children or older adults, or cooking for anyone immunocompromised, cook to that guideline instead.
More fish recipes
If you found this post helpful or have learned something, please comment, subscribe, and follow me on social media for more delicious recipes.
Recipe
How to cook salmon fillet in a pan
Ingredients
- 3 salmon fillets - note 1
- 50 g neutral oil - note 2
- 50 g butter - note 3
- 10 g parsley - finely chopped - note 4
- 1 lemon - note 5
- salt and pepper to taste
Instructions
- Before you start cooking, make sure the skins of the salmon fillets are dry. Moisture is the enemy when frying fish - it makes the skin stick and the oil spit as the moisture hits the pan. Press a piece of kitchen towel firmly against the skin and flesh until the surface is dry to the touch before frying.3 salmon fillets
- Heat the pan with a generous amount of neutral or light olive oil over high heat. When the oil is hot and just starts to smoke, it is time to add the fish. Season the salmon liberally on the skin side only. Carefully place the fillet skin-side-down, laying the near edge in first so the oil runs away from you, and cook 1 minute on high heat.3 salmon fillets , 50 g neutral oil, salt and pepper to taste
- Turn the heat down to medium and keep frying skin-side down for about 3 minutes, until the color of the flesh turns opaque roughly two-thirds of the way up the side of the fillet. Flip and cook 30 to 45 seconds on the flesh side. Depending on the thickness and size of your fillets, times may vary.
- For a medium-rare center, pull the fillets from the pan when they read 40°C / 104°F at the thickest point. The center will still look translucent at this stage - that is correct. Rest the fillets skin-side up for 3 minutes. Carry-over heat carries the center just past 42°C / 108°F, into the mid-40s°C, for a silky, just-set finish. No temperature probe? Insert the tip of a knife into the thickest part of the fillet for 3 seconds, then touch the tip to the inside of your wrist - it should feel cool-to-lukewarm, not hot. For fully cooked salmon, pull at 50°C / 122°F and rest to about 52-54°C / 125-129°F.
- While the fish rests, place 50 g of butter into the pan over medium heat. Cook for about 1 minute, just until the butter starts to bubble and foam. Remove the pan from the heat.50 g butter
- Squeeze in a touch of lemon juice. Add the chopped parsley and a fresh grating of black pepper. Return the fillets to the pan skin-side up, glaze with a little of the butter, and serve immediately.10 g parsley, 1 lemon
Notes
- Temperature - This recipe takes the salmon to medium-rare. Pull the fillets at 40C / 104F and rest them for 3 minutes. Carry-over heat carries the center just past 42C / 108F for a silky, just-set finish. If you like it cooked all the way through, pull at 50C / 122F instead and rest to about 52-54C / 125-129F. Above 60C / 140F it dries out. One thing to know: a medium-rare center is not fully cooked, so use sushi-grade or previously-frozen salmon, and cook it all the way to the USDA's 63C / 145F if you are serving anyone pregnant, very young, elderly, or with a weak immune system.
- You can also use this method to cook other types of fish fillets. Whenever buying fish make sure it's as fresh as possible. Good quality fresh fish does not smell fishy, the flesh is firm and not slimy, and the color is vibrant.
- Choose your favorite, just make sure it has a high smoking point.
- Adding butter is optional. If you want to keep it lighter simply add a bit of olive oil at this stage or skip the step.
- Use any other herb or a mixture of herbs. This step is also optional and you can simply skip it if you don't want the herbs.
- Citrus goes well with fish. You can substitute the lemon for lime, or if you have something against sharpness simply leave it out, although adding it is highly recommended.
- If you do not have a good pan, use a piece of baking parchment to fry on. Place it into the pan and follow the instructions as described.
- I highly recommend you get a kitchen thermometer. It is an inexpensive, invaluable tool we use constantly in the kitchen.
- To cook a salmon steak on the bone, use the same temperature guide and measure the temperature close to the bone.
Nutrition
This site contains affiliate links. I may earn a tiny commission on qualifying purchases at no extra cost to you. By bookmarking these links you help support the upkeep of this site.
Leave a review or ask any question