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Braised Halibut with Leeks & Mustard


Braised Halibut with Leeks and Mustard is the flavorful recipe that your whole family will love! Serve this dish with a side of mashed potatoes, roasted vegetables, or a side salad for a full and healthy meal. FIlled with the flavors of browned butter, fresh leeks, zesty Dijon mustard, and dry white wine, this dish is sure to quickly become a favorite in your household.

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Rate this recipe 4.3/5 (19 Votes)


  • 4 (6 to 8-ounce) skinless halibut fillets, 3/4 to 1-inch thick
  • salt and black pepper to taste
  • 6 tablespoons unsalted butter
  • 1 pound leeks, white and light green parts only, halved lengthwise, sliced thin, and washed thoroughly
  • 1 teaspoon Dijon mustard
  • 3/4 cup dry white wine
  • 1 teaspoon lemon juice, plus lemon wedges for serving
  • 1 tablespoon minced fresh parsley


Servings 4
Preparation time 20mins
Cooking time 50mins
Adapted from


Step 1

Sprinkle fish with 1/2 teaspoon salt. Melt butter in 12-inch skillet over low heat. Place fish in skillet, skinned side up, increase heat to medium, and cook, shaking pan occasionally until butter begins to brown, fish should not brown, 3 to 4 minutes. Using a spatula, carefully transfer fish to a large plate, raw side down.

Add leeks, mustard, and 1/2 teaspoon salt to skillet and cook, stirring frequently, until leeks begin to soften, 2 to 4 minutes. Add wine and bring to gentle simmer. Place fish, raw side down, on top of leeks. Cover skillet and cook, adjusting heat to maintain a gentle simmer, until fish registers 135 to 140°F, 10 to 14 minutes. Remove skillet from heat and, using 2 spatulas, transfer fish and leeks to serving platter or individual plates. Tent loosely with aluminum foil.

Return skillet to high heat and simmer briskly until sauce is thickened, 2 to 3 minutes. Remove pan from heat, stir in lemon juice, and season with salt and pepper to taste. Spoon sauce over fish and sprinkle with parsley. Serve immediately with lemon wedges.

We prefer to prepare this recipe with halibut, but a similar firm-fleshed white fish such as striped bass or sea bass that is between 3/4 and 1-inch thick can be substituted. To ensure that your fish cooks evenly, purchase fillets that are similarly shaped and uniformly thick.

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