# Lemon Butter Salmon > A bright, simple weeknight main: pan-seared salmon finished in the oven under lemon, white onion and butter slices for a glossy, flavorful finish. Ready in about 25 minutes, it’s elegant enough for guests but quick enough for a family dinner. Canonical URL: https://www.topshelf.recipes/recipes/lemon-butter-salmon ## Author Jake Woods https://www.topshelf.recipes/chef/jake-woods Published: August 29, 2026 Last Updated: September 3, 2026 ## About This Recipe This Lemon Butter Salmon walks the line between weeknight practicality and dinner-party polish. The method is intentionally simple: a quick, high-heat sear to create a savory, slightly crisp exterior followed by a gentle finish in the oven where thin lemon and onion slices steam and perfume the flesh. The butter—cut into pats and placed directly on top—melts into a glossy sauce that both glosses the fillets and carries the lemon’s bright acidity, while the onion contributes a slow-sweet counterpoint rather than harsh raw bite. The contrast between a crisp skin (if using skin-on) and the still-moist interior is one reason this technique is so satisfying. What makes this version work is the small sequence of purposeful steps: dry the fish, sear without fuss, shield with citrus and onion, and bake only until the center reaches about 125–130°F for medium doneness. It’s forgiving for cooks who worry about overcooking, and it scales easily—skin-on pieces hold together better during searing, skinless fillets cook faster. Finish with a brief rest and spoon the buttery pan juices back over each fillet for maximum flavor and shine. ## Recipe Information - Prep Time: 10 minutes - Cook Time: 13 minutes - Total Time: 23 minutes - Servings: 4 - Difficulty: Easy - Category: General ## Ingredients ### Preheat and season - 4 fillets Salmon fillets (skin-on or skinless) - 1 tbsp Olive oil - 1 tsp Kosher salt - 1/2 tsp Black pepper (freshly ground) ### Top with lemon, onion and butter - 1 medium (sliced) Lemon, sliced - 1/2 medium (sliced) White onion, thinly sliced - 4 tbsp Unsalted butter, sliced into pats ### Rest and finish - 2 tbsp Fresh parsley, chopped ## Instructions ### 1. Preheat and season Preheat the oven to 400°F (200°C). Pat the salmon fillets dry with paper towel, then drizzle with olive oil and season both sides with kosher salt and freshly ground black pepper. ### 2. Sear the fillets Heat a large ovenproof skillet over medium-high heat until hot. Add the salmon, skin-side down if applicable, and sear 2–3 minutes without moving to crisp the skin; flip and sear the other side 30–45 seconds to color. ### 3. Top with lemon, onion and butter Transfer the fillets in the skillet (or move to a baking dish) and arrange lemon slices and a few thin white onion slices atop each fillet. Place a butter pat (about 1 tbsp) on each piece so the butter will melt over the fish while baking. ### 4. Bake until just cooked Place the skillet or baking dish in the preheated oven and bake 8–10 minutes, depending on thickness, until the salmon is opaque and flakes easily with a fork (internal temp ~125–130°F/52–55°C for medium). ### 5. Rest and finish Remove from oven and let rest 2 minutes so juices settle. Spoon the melted lemon-butter and onion juices over the fillets and sprinkle with chopped fresh parsley. ### 6. Serve Serve one fillet per person (about 200g). Optionally squeeze extra lemon over each portion and pair with rice, potatoes or a green salad for a complete meal. ## Nutrition Estimated nutrition per serving (1 fillet (200g)): - Calories: 662 kcal - Protein: 46.9 g - Carbohydrates: 27.7 g - Fat: 40.7 g - Saturated Fat: 6.3 g - Trans Fat: 0.3 g - Fiber: 12.7 g - Sugar: 5.1 g - Added Sugars: 0 g - Cholesterol: 1 mg - Sodium: 1506 mg - Potassium: 1281 mg - Calcium: 206 mg - Iron: 4.4 mg - Vitamin D: 0 mcg ## Tips ### Pat salmon dry Removing surface moisture before seasoning helps the fillets sear cleanly and develop a light crust instead of steaming. ### Sear skin-side first Place salmon skin-side down over medium-high heat and don’t move it for 2–3 minutes to ensure a crisp skin and easier flip. ### Use butter pats Thin pats melt evenly and baste the fish while baking without pooling too much; room-temperature butter melts most predictably. ### Bake to temp Check the thickest part with an instant-read thermometer and pull at 125–130°F for medium; carryover will raise it a few degrees while it rests. ### Rest briefly then spoon Let the salmon rest 1–2 minutes, then spoon the melted lemon-butter and softened onions over each fillet to redistribute juices. ## Variations and Substitutions ### Lemon-Caper Twist Scatter a tablespoon of capers over the fillets before baking and finish with chopped dill for briny brightness that complements the butter. ### Herb and Garlic Butter Mix softened butter with minced garlic, chopped thyme, and lemon zest, then use this compound butter in place of plain pats for a fragrant herb crust. ### Honey-Soy Glaze Brush a 1:1 mixture of honey and low-sodium soy sauce over the fish after searing and reduce the oven time slightly for an Asian-inspired sweet-savory finish. ### Dairy-Free Citrus Swap butter for a drizzle of good olive oil and a few lemon slices; add a splash of white wine to the pan before baking to boost pan sauce flavor. ## Notes This lemon-butter method highlights the richness of the salmon while letting the citrus and sweet onion shine. It’s perfect for a low-fuss dinner that feels special — pair with rice, roasted vegetables, or a crisp salad. ### Storage and Make-Ahead Store leftover salmon in an airtight container in the refrigerator for up to 2 days; spoon the cooled lemon-butter over the fish to keep it moist. Reheat gently in a 275–300°F oven covered with foil for 8–10 minutes, or warm in a skillet over low heat with a splash of water or wine to prevent drying. Freezing cooked salmon is possible but the texture will be noticeably softer after thawing. ### Serving Suggestions Serve the salmon over buttery mashed potatoes, herbed rice, or a lemony orzo so the pan juices can be mopped up; roasted asparagus or a bright green salad with vinaigrette make crisp, textural contrasts. For wine, choose a zesty Sauvignon Blanc, an unoaked Chardonnay, or a light Pinot Noir if you prefer red. Plate fillets skin-side up if you want to show a crisp edge, and finish with a lemon wedge and chopped parsley for color. ## Frequently Asked Questions ### Can I use frozen salmon? Thaw frozen fillets completely in the refrigerator overnight and pat them very dry before cooking; excess moisture will interfere with searing. If you’re short on time, thaw under cold running water in a sealed bag and dry thoroughly. ### How do I cook thicker fillets? Sear as directed, then add 2–4 extra minutes in the oven depending on thickness; use an instant-read thermometer and aim for 125–130°F for medium. For very thick pieces, you can lower oven temp to 375°F and bake a few minutes longer for gentler heat. ### What if I don’t have an ovenproof skillet? Sear the salmon in a regular skillet, then transfer the fillets to a baking dish before adding lemon, onion, and butter pats to finish in the oven. ### Can I prepare elements ahead? You can slice the lemon and thin the onion in advance and keep butter pats chilled; sear the fish up to 30 minutes ahead and finish in the oven just before serving to preserve texture. ### How can I prevent the onion from burning? Slice the onion thinly and place it on top of the fillet so it softens and steams rather than crisping. 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