Roasted Halibut with Leek and Lemon Beurre Blanc
Prep
20 mins
Cook
25 mins
Servings
4
Difficulty
Medium
This elegant halibut dish has become a weeknight favorite in my kitchen because it comes together in under an hour yet tastes restaurant quality. The delicate white fish pairs beautifully with a silky lemon beurre blanc and tender roasted leeks, while fresh sage adds an unexpected herbaceous note. Beyond being absolutely delicious, halibut is packed with omega 3 fatty acids that support heart health. What I love most is how straightforward it is to pull off, even for a casual home cook like me. Just forty five minutes from start to finish, and you've got something that'll impress anyone at your table.
Ella x
Ingredients
- 4halibut fillets(6 oz each, skin-on)
- 3leeks(white and light green parts, halved lengthwise and sliced into 2-inch pieces)
- 6 tablespoonsbutter(divided)
- 3 tablespoonsfresh lemon juice
- 237 mldry white wine
- 2shallots(minced)
- 12fresh sage leaves
- 237 mlpanko breadcrumbs(toasted)
- 2 tablespoonsolive oil
- 1 teaspoonsea salt
- 1 teaspooncracked black pepper
- 237 mlvegetable stock
- 1 teaspoonlemon zest
Detail level
Instructions
- 1
Preheat your oven to 400°F. Pat the halibut fillets dry with paper towels and season both sides generously with sea salt and cracked black pepper.
Tip: Dry fish ensures better browning and a crispier skin when roasted.
- 2
Heat 2 tablespoons of butter and the olive oil in a large oven-safe skillet over medium-high heat. Once foaming, arrange the halibut skin-side down and sear for 3-4 minutes until the skin is golden and crispy. Transfer to a plate.
Tip: Don't move the fish while searing—let it develop color undisturbed.
- 3
In the same skillet, add 2 tablespoons of butter and sauté the sliced leeks with a pinch of salt over medium heat for 8-10 minutes, stirring occasionally, until they turn golden and caramelize at the edges.
Tip: Patient caramelization brings out the natural sweetness of the leeks.
- 4
Push the leeks to the sides of the skillet and add the minced shallots to the center, cooking for 1 minute until fragrant. Pour in the white wine and vegetable stock, scraping up any browned bits from the pan.
Tip: Deglazing the pan captures all the flavorful browned bits.
- 5
Return the halibut fillets skin-side up to the skillet, nestling them among the leeks. Transfer the entire skillet to the preheated oven and roast for 10-12 minutes until the fish is opaque and flakes easily with a fork.
Tip: The residual heat from the skillet helps the fish cook evenly from underneath.
- 6
While the fish roasts, crisp the sage leaves in a small pan with 1 tablespoon of butter over medium heat for 1-2 minutes until fragrant and slightly browned. Set aside.
Tip: Sage adds an elegant herbaceous finish to the dish.
- 7
Remove the skillet from the oven. Whisk the remaining 1 tablespoon of cold butter into the pan liquid along with the lemon juice, creating a silky sauce. Taste and adjust seasoning as needed.
Tip: The cold butter emulsifies the sauce and adds luxurious richness.
- 8
Plate each halibut fillet with leeks and sauce. Garnish with toasted panko breadcrumbs, crispy sage leaves, and a sprinkle of fresh lemon zest before serving.
Tip: The breadcrumbs add pleasant crunch that contrasts beautifully with the tender fish.
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