Crispy Skin Salmon with Peach Salsa Glaze
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Crispy salmon skin is the difference between fish you eat and fish you remember. Most people never get it at home because they treat it as a seasoning question when it's really a technique question. In reality, the technique is not difficult once somebody explains what's happening in the pan.
This is the sear-then-oven method, which is how many restaurant kitchens handle salmon, and it's also the most forgiving way to do it at home. You get the crust in a hot skillet, brown the flesh side, then let a hot oven finish the inside while the skin keeps crisping in the pan underneath. The oven does the part that's easy to get wrong.
Our Peach salsa goes on right before the fish goes into the oven. The sweetness from the peaches sets into a glaze, the Vidalia onions give it body, and the jalapeño keeps it from turning into dessert. Four minutes of ambient oven heat is enough to caramelize it but not enough to burn it.
What you need
Four skin-on salmon fillets, about six ounces each, ideally center-cut so they're an even thickness. One cup of Blue Smoke Salsa Peach. Salt, black pepper, and garlic powder.
You want two oils here, and they do different jobs. Olive oil goes on the fish, brushed or sprayed, to help the seasoning stick and give you more even browning. For the pan, use something with a higher smoke point — avocado, grapeseed, or plain vegetable oil. The pan oil is what absorbs the heat, and a hot skillet will run past extra virgin olive oil's smoke point and turn it bitter.
You also need an oven-safe skillet. Cast iron or carbon steel is best, but stainless steel works fine. A nonstick pan will not get hot enough for a proper sear, and many aren't rated for the oven anyway.
Heat the oven to 400°F before you start anything else, because the pan step moves quickly once it begins.
Dry the skin... then dry it again
This is the step a lot of people skip, and it decides everything. Water on the skin has to boil off before browning can start, and while that's happening the fish above it is already cooking. Every second spent evaporating moisture is a second stolen from the sear and that crispy skin we are going for.
Pat the skin hard with paper towels until it feels tacky rather than slick. If you have 40 minutes, salt the skin lightly and leave the fillets uncovered on a rack in the refrigerator — the salt pulls moisture to the surface and the cold dry air carries it away, and the crust is noticeably better for it. Leave the skin bare during that rest and hold the oil until just before cooking, since oil on the skin traps the moisture you're trying to lose. If you only have four minutes instead, drying with paper towels alone will still get you there.
Also, make sure to take the fish out of the refrigerator 15 minutes before cooking so it isn't ice cold going into the pan.
Score the skin, oil, and season
In a hot skillet, the skin contracts faster than the flesh, which lifts the center of the fillet off the pan and leaves you with browned edges around a pale, soggy middle. Scoring releases that tension so the fillet stays flat.
Make three or four shallow diagonal cuts across the skin with a sharp knife, about an inch apart. Cut through the skin and barely into the fat underneath, no deeper. If you're seeing pink flesh you've gone too far, and those cuts will open during cooking and dry the fish out.
Now brush or spray both sides lightly with extra virgin olive oil. Make sure to do this after the drying, not before. A spray gives you a thinner, more even coat than a brush if you have one. This is what makes the seasoning adhere instead of falling into the pan, and it fills the tiny gaps in the surface so heat contacts the skin uniformly.
Season the flesh side with salt, pepper, and garlic powder. Season the skin with salt only. Garlic powder scorches at searing temperatures and turns bitter, and the skin takes the most direct heat in this entire process. Besides, the flesh side is where seasoning registers anyway.
Sear the skin
Put the skillet over medium-high heat and give it a full three minutes to come up to temperature. A pan that isn't hot enough is the most common reason this fails. Add enough avocado or grapeseed oil to coat the bottom and wait until it shimmers and moves like water.
Lay the fillets in skin side down, away from you to avoid splattering yourself with hot oil. Press each one with a spatula for about 20 seconds. The fillet will want to curl in the first few moments even with the scoring, and this holds it flat until the skin sets.
Then leave them alone for three to four minutes. Don't move them, lift them, or check them. You'll see the flesh turning opaque up the sides of the fillet, and that band is your real timer. The skin releases from the pan when it's ready, so if it sticks when you lift a corner, give it another minute.
Flip, glaze, and into the oven
Flip the fillets and brown the flesh side for about two minutes. This is a quick color step rather than a cooking step.
Flip them back to skin side down, then spoon a heaping tablespoon of Peach salsa onto each flesh side. Spoon from the top of the jar and take the chunkier solids rather than the loose liquid, and keep the glaze centered rather than spread to the edges. What runs down the sides will pool around the skin and soften the perimeter.
Move the whole skillet into the 400°F oven for about four minutes. The salsa caramelizes into a glaze in the ambient heat while the skin keeps crisping against the hot pan underneath, and by the end the skin has had seven or eight minutes of contact, which is right where it should be.
Start checking at four minutes. The salmon is done when the thickest part flakes under gentle pressure and the very center is just barely translucent, and it carries over a few degrees while it rests. If you want more color on the glaze, run it under the broiler for the last 60 seconds instead of extending the oven time.
Rest it two minutes, then serve it flesh side up on a bed of couscous, rice, or greens so the glaze stays visible and the skin sits up out of the juices. A glazed fillet set directly on a bare plate will soften on the bottom within a few minutes, which is the one thing that undoes all this work. You can also add a little more salsa to the top of the glaze if you like.
What to serve with it
Rice or couscous soak up the glaze better than anything else and the salsa is already doing the flavor work. Roasted asparagus or green beans hold up well beside it and can go into the same oven. For something lighter, set the fillet over arugula and let the warm glaze wilt the greens into a dressing.
A few notes
Thickness matters more than weight. A thin tail piece overcooks before the skin crisps. Ask the counter for center-cut fillets of even thickness and this gets much easier.
Farmed versus wild. Farmed salmon carries more fat and forgives more. Wild sockeye is leaner and cooks faster, so start checking a minute early.
Skip the oven if your fillets are thin. Under an inch, the sear and the flesh-side flip will nearly finish them. Glaze them in the pan off heat and let the residual warmth set it.
On the grill. Same principle at medium-high, skin side down, and never flip. Add the glaze in the last two minutes so the sugars don't burn over direct flame.
Leftovers. The skin won't stay crisp overnight. Flake the cold salmon over a salad the next day rather than reheating it.
If you've got a jar of Blue Smoke Salsa Peach in the pantry, you're most of the way to dinner. If you don't, you can order a three pack here, or ask for it by name at your nearest retailer.