Pan-Seared Halibut with Lemon Butter

Ingredients

Equipment Needed

• •12-inch stainless steel or cast iron skillet
• •Fish spatula
• •Instant-read thermometer (optional, for beginners)

Instructions

1. 1

   Temper the fish

   Remove halibut from the refrigerator thirty minutes before cooking. Cold fish hitting a hot pan creates uneven cooking and a pale, steamed exterior instead of that gorgeous crust. Pat each fillet thoroughly dry with paper towels. Moisture is the enemy of a proper sear.

   If you bought the fish today, from someone who can tell you where it was caught, you are already most of the way there.
2. 2

   Season generously

   Season the fillets on both sides with fine sea salt and black pepper. The salt should be visible but not heavy, like a light snowfall. Let the seasoned fish rest on a clean plate while you heat the pan. This draws moisture to the surface, which we will blot away for a better crust.

3. 3

   Heat the pan properly

   Set a large stainless steel or cast iron skillet over medium-high heat. Add the oil and let it heat until you see the first wisps of smoke and the oil shimmers like water. This takes two to three minutes. Do not rush this step. A properly heated pan is what separates restaurant fish from home-cooked fish.

   Stainless steel shows you the fond (the golden bits) better than a dark pan. Those bits become your sauce.
4. 4

   Sear the first side

   Blot any moisture that has risen to the surface of the fish. Lay fillets in the pan, presentation side down, away from you to avoid splatter. Do not move them. Do not peek. Listen for an aggressive sizzle that settles into a steady hiss. After three to four minutes, the edges will turn opaque and golden crust will form where the fish meets the pan.

5. 5

   Flip once

   Slide a thin spatula under each fillet, checking that it releases without resistance. If it sticks, wait another thirty seconds. The fish will tell you when it is ready to turn. Flip gently and cook the second side for two to three minutes. The fish is done when it flakes under gentle pressure but still has a pearlescent center. Carry-over cooking will finish the job.

6. 6

   Transfer and rest

   Move the fillets to a warm platter and let them rest while you make the butter. This takes only a minute, and the resting allows the juices to redistribute throughout the flesh.

7. 7

   Brown the butter

   Reduce heat to medium. Add butter to the same pan, letting it melt into the fond. Swirl constantly as it foams and sputters. Watch the milk solids at the bottom of the pan. They will progress from pale yellow to golden to the color of hazelnuts, releasing a nutty fragrance that fills the kitchen. This transformation takes sixty to ninety seconds. Do not walk away.

   Brown butter goes from perfect to burned in seconds. Pull the pan from heat the moment you smell toasted nuts and see golden flecks.
8. 8

   Finish the sauce

   Remove pan from heat immediately. Add capers (they will sputter and crisp in the hot fat) and lemon juice (it will bubble violently, so stand back). Swirl to combine. The acid stops the browning and creates a silky, emulsified sauce. Stir in the parsley.

9. 9

   Sauce and serve

   Spoon the brown butter over each fillet, making sure everyone gets their share of capers. Serve immediately with lemon wedges. The fish should glisten. The butter should pool slightly on the plate. This is a dish that wants to be eaten the moment it arrives.

Chef Tips

• •Buy halibut the day you plan to cook it. Fresh fish waits for no one. If your fishmonger will tell you which boat brought it in, you have found a good one.
• •Thickness matters more than weight. Look for fillets at least one inch thick. Thin pieces overcook before they develop a proper crust.
• •If Pacific halibut is out of season or unavailable, wild striped bass, black cod, or thick cod fillets respond beautifully to this same treatment.
• •A fish spatula (thin, flexible, slotted) makes flipping delicate fillets far easier than a standard spatula. It is worth owning.
• •Save the lemon you juiced. Char the spent halves cut-side down in the hot pan before adding butter. Serve them alongside for squeezing.

Advance Preparation

• •Halibut does not wait. Buy it the day you plan to cook it. The fish can be seasoned up to one hour before cooking and left uncovered in the refrigerator to dry the surface further.
• •Capers can be drained and parsley chopped several hours ahead. Store separately, covered, at room temperature.
• •Lemon butter sauce cannot be made ahead. It takes ninety seconds. Make it fresh.

Frequently Asked Questions

Nutrition Information

1 serving (about 220g)