Italian Pan Seared Salmon | Salmone in Padella

Sep 25

11 min read

Italian Pan Seared Salmon (Salmone in Padella)

This is salmon cooked in a pan and nothing else: no bed of spinach, no asparagus in the same skillet, no sauce built around it. Four pieces of fish, a heavy pan, salt, olive oil, a wedge of lemon at the table. It is the version an Italian home cook makes on a weeknight, and the one that exposes every mistake, because nothing on the plate hides anything.

Almost everything that goes wrong with salmon goes wrong for one reason: the heat is too high. Salmon is a fatty fish, and pushed hard the fibres contract and force liquid to the surface, where it sets into the white curd people read as a sign the fish is done. It is not. Medium heat rather than high heat is most of this recipe. The rest is knowing what you bought, since a farmed Atlantic fillet and a wild sockeye loin of the same thickness carry very different amounts of fat.

Yield: 4 servings. Prep: 15 minutes plus 30 minutes salting. Cook: 10 minutes. Rest: 3 minutes. Difficulty: easy, with a narrow margin. Course: secondo piatto.

The Story

Salmon is not an Italian fish, and it is worth saying plainly. No salmon runs in Italian rivers, no Italian fleet ever fished it, and it appears in none of the regional cookbooks that recorded Italian cooking before the war. The Mediterranean has anchovies, sardines, red mullet and tuna. Until the second half of the twentieth century Italians met salmon only as an expensive smoked luxury at Christmas.

Norwegian aquaculture changed that. Sea cage farming of Atlantic salmon scaled up through the nineteen seventies and eighties, Scotland followed on its west coast and islands, and a rare seasonal fish became a year round commodity at a stable price. It reached Italy with the supermarket fish counter and the household freezer, and filled a gap nothing else did: no scales, almost no bones, a mild flavour children accept. By the nineteen nineties a trancio di salmone was as ordinary as a chicken breast.

What sits on the counter now is one of two different animals. Farmed Atlantic salmon, Salmo salar, is the fatty one, pale coral and forgiving, the fish most recipes are written for. Wild Pacific salmon is a group of species: chinook or king, fattest and rarest; sockeye, deep red and distinctly lean; coho in between; then pink and chum. The colour difference comes from diet. Both take their pigment from carotenoids, chiefly astaxanthin, which wild fish get from krill and small crustaceans and farmed fish receive in their feed. Sockeye, eating little but plankton, ends up darkest. None of this indicates freshness, and a paler fillet is not inferior.

Ingredients

For the salmon

Salmon fillets or tranci, skin on, 4 pieces of 6 oz (170 g) each, 1 to 1 1/4 inch thick (2.5 to 3 cm)
Fine sea salt, 1 1/4 tsp (7 g), for salting ahead
Extra virgin olive oil, 2 tbsp (30 ml)
Freshly ground black pepper, to taste

For finishing

Lemon, 1, cut into wedges
Extra virgin olive oil, 2 tbsp (30 ml), raw, the best you have
Flaked sea salt, a small pinch per portion
Flat leaf parsley, chopped, 1 tbsp, optional

The shortness of the list is the point. Butter, garlic and lemon slices in the pan make a heavier dish. Here the fat of the fish is the sauce.

Preparation

Choosing the cut and judging the fish

Ask for centre cut pieces. A trancio, the cross section cut through the fish with a piece of backbone in it, stays moister and is easier to keep pink in the middle, because the bone slows heat reaching the centre. A portion from the thick shoulder end of a fillet is the other good choice. Avoid the thin tail: it is done in three minutes and dry in four. Fresh salmon springs back when pressed, shows no gaps between the muscle bands, and smells of cold water and cucumber. A sour smell or a grey bruised belly line means it has sat too long.

Boning, trimming and the dry brine

Run your fingertips along the thick edge and you will feel a row of fine bones angled into the flesh. Take them out with tweezers, gripping each close to the skin and pulling in the direction it lies rather than straight up, which tears the flesh. Trim each portion to roughly even thickness, since thickness sets the timing. Then salt both sides and leave the fish uncovered on a rack in the refrigerator for 30 minutes. This is a short dry brine, not seasoning: salt draws moisture from the surface, which reabsorbs a seasoned brine, so the proteins hold water more firmly and less is forced out as albumin. It also dries the skin, the only condition under which skin crisps.

Setting the pan and cooking the skin side

Blot both sides thoroughly, especially the skin, and let the fish stand at room temperature 10 minutes. Use a heavy skillet that holds its temperature, wide enough for the four pieces to sit an inch apart, since crowded fish releases moisture faster than the pan can drive it off. Add the oil and set the pan over medium heat, not high. You want it shimmering and just starting to move; if it smokes, lift the pan off for a minute.

Lay the pieces skin side down away from you and press each with a fish spatula for about ten seconds. Skin contracts as it heats and the fillet lifts at the edges, so the centre never touches the pan unless you flatten it first. Then leave the fish alone. For a 1 inch (2.5 cm) piece of farmed salmon, 4 to 5 minutes on the skin; for wild sockeye or coho, 3 to 4 minutes, because leaner flesh heats faster. Watch the side of the fillet: opacity creeps up from the bottom, and when it has climbed two thirds of the way the first side is done.

Turning and reading the internal temperature

Turn once and lower the heat slightly. The second side needs 2 to 3 minutes for farmed salmon at 1 inch, 90 seconds to 2 minutes for lean wild fish. Grind the pepper on now, since pepper scorches in a hot pan. With thick pieces take the pan off the heat entirely for the last minute and let the metal finish them. A thin line of white curd along the edges is normal; sheets of it mean the heat was too high.

A thermometer in the thickest part is the only certainty, and the three useful numbers sit close together. At 122°F (50°C) the centre is translucent and almost raw, glossy and silky, the restaurant finish, worth doing only with very good fish. At 131°F (55°C) the flesh is set but still deep pink through the middle and separates into large soft flakes: the target here. At 140°F (60°C) it is uniformly opaque, still pleasant but drier and pushing out noticeably more albumin. Take wild sockeye 5 degrees lower at any of these points.

Resting and dressing

Move the fish to a warm plate and rest it 3 minutes. It keeps cooking as it sits, climbing another 5 to 9°F (3 to 5°C) in a thick piece, which is why it leaves the pan below target. Then dress it at the last second: raw olive oil over each piece, a pinch of flaked salt, and a lemon wedge on the side rather than juice squeezed over it in the kitchen.

Plating

Warm the plates, because salmon fat turns waxy the moment it cools. Serve each piece skin side up if the skin crisped. If it did not, turn it over and serve it skin down, which looks deliberate and shows the pink interior at the edges. Set the fish slightly off centre and leave the space around it empty: this is a plain dish and looks best plain. The raw oil goes on at the pass, a glossy line over the fillet rather than a pool. Since this is the base recipe with no side, what belongs beside it is boiled potatoes in the same oil, or nothing.

Professional Technique

The technique that defines this dish rests on two facts about salmon: it is a fatty fish, and it leaks albumin.

Salmon carries its fat differently from the white fish Italian cooking is built around. In cod or sea bass the lipids sit in the liver and the flesh is lean. In salmon the fat is distributed through the muscle itself, in and between the fibres, laid down in the pale lines that run across a fillet. A farmed Atlantic fillet can be well over ten percent fat by weight; a wild sockeye loin is closer to five. That intramuscular fat is a buffer: it melts as the fish heats, lubricates the fibres from inside, and gives a fatty fillet a margin of a minute or two a lean one does not have. It is why farmed salmon tolerates rough handling and wild punishes it.

The white substance on the surface is albumin, and understanding it separates cooking salmon from merely heating it. The flesh contains water soluble sarcoplasmic proteins, albumin among them, dissolved in the liquid held between the muscle fibres. As the flesh warms those fibres contract and squeeze that liquid outward, and at the hot surface the dissolved protein coagulates, exactly as egg white does, into an opaque white curd. So albumin is not doneness and not a fault in the fish. It is a measurement: it tells you how much liquid has been driven out, and all of it is moisture the fish no longer has.

Two variables control how much appears. The first is temperature: contraction accelerates sharply above roughly 140°F (60°C), so the same fillet taken gently to 131°F (55°C) or hard to 158°F (70°C) looks like two different pieces of fish. The second is time at that temperature, which is why a piece finished off the heat gives up less than one held over a flame. That is the whole argument for medium heat: keeping the fish below the threshold at which it starts pushing itself out.

Texture and Moisture Control

Correctly cooked salmon separates into large, soft, slightly translucent flakes that hold together when lifted. Overcooked salmon breaks into small dry flakes that collapse on the fork, because the fibres have contracted, the fat has largely rendered out and the connective tissue between the muscle bands has given up. That change happens across about 15°F (8°C), which is why a thermometer beats any visual cue.

Surface moisture and interior moisture are separate problems with opposite answers. Outside you want the skin bone dry before it touches the pan, because water must be driven off before browning starts and wet skin steams, sticks and tears. Inside you want as much water retained as possible: the lowest heat that still browns, the shortest time at it. Carryover is what people underestimate: a 1 1/4 inch (3 cm) piece pulled at 131°F (55°C) reaches the high 130s while it rests, so pull it under target. If you have taken it too far, spoon raw olive oil over it rather than reaching for a sauce.

Professional Mise en Place

This dish cooks in ten minutes and cannot be rescued once overcooked, so everything is ready before the pan goes on.

Equipment and tools

Heavy skillet, cast iron, carbon steel or thick stainless, wide enough for 4 pieces
Instant read digital thermometer, the tool that makes this dish reliable
Fish tweezers for the pin bones, thin flexible fish spatula
Wire rack over a tray for the dry brine

Prepared ahead

Pin bones pulled and portions trimmed to even thickness, up to 1 day ahead
Fish salted and air drying uncovered, 30 minutes to 2 hours before cooking
Lemon in wedges, parsley chopped, finishing oil and flaked salt out
Plates warming, since salmon fat turns waxy on a cold plate

Service setup

Fish blotted dry, at room temperature 10 minutes before the pan
Pan over medium heat, oil shimmering, never smoking
Thermometer within reach, not in a drawer
Warm plates and finishing oil at the pass, lemon only at the table

Chef Tips

Buy by thickness, not by weight. Two 6 oz portions cook in completely different times if one came from the shoulder and one from the tail. Ask for centre cut.

Know which salmon you have before you cook. Farmed Atlantic is pale coral, softly marbled with white fat lines, forgiving. Wild sockeye is dark red, firm, leaner and about a minute per side faster. Cooking sockeye on Atlantic timings is the surest way to dry salmon.

Do not chase crisp skin at the cost of the fish. Skin crisps at a higher heat than the flesh wants, and pushing the pan hard enough to guarantee a shattering skin drives albumin out of a fillet this thin. Medium heat, a dry surface and ten seconds of pressure give crisp skin and flesh still pink.

Keep the fat left in the pan. That spoonful of rendered salmon fat and olive oil is worth pouring over boiled potatoes rather than washing away. It is the only sauce this dish makes.

Common Mistakes

Cooking salmon over high heat. This causes most of the others. High heat contracts the fibres hard, forces liquid and dissolved albumin to the surface in sheets, and dries the interior before the outside has coloured. Medium heat, with the pan lifted off the flame for the last minute, gives more colour and less curd at once.

Reading the white curd as doneness. Albumin appears well before the centre is cooked and keeps appearing long after. Judge by internal temperature, or by how far opacity has climbed the side of the fillet, never by the surface.

Putting wet fish into the pan. Skin carrying surface water cannot brown, because the water must evaporate first while the flesh above it goes on cooking. It sticks, tears when you turn it, and the fillet ends up pale and steamed.

Moving the fish too early. Salmon releases from the pan once the skin has set, which takes a few minutes. Lifting a corner to check or turning it early leaves half the skin stuck to the metal. Press it flat for ten seconds, then leave it alone.

Using one timing for wild and farmed. Wild sockeye and coho carry roughly half the fat of farmed Atlantic, so they heat faster and have far less margin. Cook them about a minute less per side and pull them 5 degrees lower.

Wine Pairing

Etna Bianco DOC: Carricante grown on volcanic soil high on the Sicilian slopes, and the sharpest tool for this job. Its acidity is unusually high for a southern white and it carries a mineral, faintly saline edge that scours the fat of the salmon off the palate, with enough weight to match a fillet.

Ribolla Gialla Collio DOC: A white with texture rather than only freshness, which is what a fatty fish needs. Grown on the marl and sandstone of the Friulian border, it has a slightly phenolic grip and a pear and wild herb character that sits alongside the richness of the flesh instead of fighting it.

Lugana DOC: Turbiana from the clay shores of southern Lake Garda, the gentlest white here. It has real body and a bitter almond finish that lifts the oily edge of the fish without cutting across it, and acidity that is rounded rather than piercing. Choose it for farmed Atlantic salmon.

Cerasuolo d'Abruzzo DOC: A serious dry rosato from Montepulciano, with more colour, structure and sour cherry fruit than most Italian pink wine. The trace of tannin it keeps from brief contact with the skins works against the seared surface of the fish in a way no white manages, while its acidity still handles the fat.

Alto Adige DOC Pinot Nero: The one red that genuinely belongs with salmon, and it must be the lightest you can find. Alpine Pinot Nero has pale red fruit, low tannin and bright acidity, so it refreshes rather than coats. Served cool, around 57°F (14°C), it picks up the browned surface while leaving the pink interior alone. Any tannic red turns metallic against salmon fat.

Storage & Reheating

Cooked salmon keeps refrigerated in an airtight container for up to 2 days and no longer. It is a fatty fish and those fats oxidise quickly once the flesh is cooked and cut, which is why day three salmon smells strongly of fish when the fresh fillet never did.

The honest answer on reheating is that you should not. Salmon taken to 131°F (55°C) has no margin left, and any reheat pushes it past the point where it dries and expels more albumin. Eat it cold instead, flaked over a salad or broken into boiled potatoes with raw olive oil. If it must be warm, cover it with foil and give it 8 to 10 minutes at 250°F (120°C), never a microwave on high.

Raw salmon freezes well and cooked salmon does not. A fresh fillet wrapped tightly and frozen at 0°F (minus 18°C) holds about 3 months. Cooked salmon comes out dry and grainy, because ice damages fibres that have already contracted once, so freeze any surplus raw on the day you buy it.

Nutrition

Per serving, based on 4 servings of 6 oz (170 g) each, including the cooking and finishing oil:

Calories: 420 kcal
Total Fat: 29 g
Saturated Fat: 5 g
Trans Fat: 0 g
Unsaturated Fat: 23 g
Cholesterol: 95 mg
Sodium: 480 mg
Total Carbohydrates: 1 g
Fiber: 0 g
Total Sugars: 0 g
Added Sugars: 0 g
Protein: 36 g
Lactose: 0 g
Principal micronutrients: omega 3 fatty acids EPA and DHA, vitamin D, vitamin B12, selenium, niacin, potassium, phosphorus