Crispy Skin Arctic Char with Garlic Herb Butter

This skillet Arctic char is the weeknight dinner that feels like a restaurant splurge but comes together in one pan in under 30 minutes. The key is a screaming-hot cast iron skillet and a confident sear that turns the skin into a shatteringly crisp, golden shell.

Then comes the magic: a foamy garlic-dill butter that you spoon over the fish as it cooks, along with blistered cherry tomatoes that burst into sweet, tangy pockets. A final shower of grated Parmigiano-Reggiano adds a savory, nutty finish.

Crispy skin fish is one of the most rewarding things to cook at home. This recipe uses Arctic char, a sustainable cousin of salmon, with a delicate flavor and beautiful orange flesh. The method is straightforward: score the skin, sear it hard, then baste with a fragrant butter sauce.

The result is a restaurant-quality dish that looks impressive on the plate but requires minimal effort. Whether you're cooking for a special occasion or just elevating a Tuesday night dinner, this one-pan meal delivers on all fronts.

Ingredients

Why this recipe works

Scoring the skin in a crosshatch pattern is the secret to extra crispiness. The shallow cuts expose more surface area to the hot pan, allowing the fat to render quickly and the skin to crisp up evenly. It also prevents the skin from curling or buckling as it cooks, keeping the fillet flat and in contact with the pan. This technique is a game-changer for anyone who has struggled with soggy or rubbery fish skin.

Basting with foaming butter is a classic restaurant technique that keeps the fish moist and infuses it with flavor. As the butter foams, it emulsifies with the juices and herbs, creating a glossy, flavorful sauce.

The garlic and dill perfume the butter, while the cherry tomatoes add a burst of acidity that cuts through the richness. The result is a perfectly cooked fillet with a crisp top and a tender, flaky interior.

Notes and substitutions

Arctic char is the star of this dish, but you can also use salmon or trout. Look for fillets with the skin on and about 6 ounces each. If the fillets are thicker, adjust the cooking time accordingly. The cheese should be a firm, aged Parmigiano-Reggiano, grated on a box grater to create a light, fluffy texture. Avoid pre-shredded cheese, which often contains anti-caking agents that prevent melting.

A cast iron skillet is ideal because it holds heat well and gives the skin that perfect sear. If you don't have one, use a heavy stainless steel or nonstick pan, but make sure it's thoroughly preheated.

Fresh dill is essential for the best flavor; dried dill won't have the same brightness. The cherry tomatoes should be small and sweet, like vine or grape tomatoes. If they're large, halve them so they cook quickly.

• Arctic char: Salmon or trout fillets work well; keep the skin on and adjust cooking time for thickness.
• Aged Parmigiano-Reggiano: Use a vegetarian hard cheese like Grana Padano (not vegetarian) or a vegan Parmesan-style grating cheese.
• Fresh dill: Fresh parsley, chives, or a mix of soft herbs can be used; reduce the amount if using tarragon.
• Vine cherry tomatoes: Grape tomatoes or any small sweet tomatoes work; halve them if they are large.

Equipment

• Chef's knife
• Cutting board
• Box grater
• Cast iron skillet
• Fish spatula
• Tongs