In my early twenties, I waited tables at a restaurant in Boston where we were trained to ask customers how they preferred their salmon prepared, from medium rare to well done. This was a new concept to me, as I was only familiar with this level of specificity for steak, not fish.
After my debut evening on the job, I ordered salmon cooked medium as my staff meal to see what the fuss was about. The result was astonishing. It was slightly undercooked in the center, achieving a perfect level of moisture and a tender, melt-in-your-mouth texture. I immediately wanted to master this dish at home.
During my research, I stumbled upon the slow-roasting technique for salmon. I was amazed to find recipes recommending a temperature of 275°F—a setting my oven had never previously reached, as it was always set higher. This method yielded a fish so tender and succulent that I vowed never to cook salmon any other way again.
While slow-roasted salmon is excellent on its own, a creamy lemon butter sauce with garlic elevates it significantly. This sauce blends the rich taste of salted butter, the zesty flavor of lemon, and a hint of sweetness from honey. It’s a luxurious addition that beautifully enhances the salmon.
The Benefits of Slow Roasting
Cooking proteins at high temperatures often causes them to seize up, resulting in a tougher, drier meal. Conversely, slow-roasting allows the heat to penetrate the protein evenly and gently, preserving its moisture and achieving a buttery, tender texture. This method ensures your salmon remains juicy and flake-free.
Simply Recipes / Ciara Kehoe
Perfect Pairings for Salmon
- Garlic Roasted Potatoes
- Roasted Asparagus
- Lemony Spinach Rice
- Seared Broccoli
Slow-Roasted Salmon with Lemon Butter Sauce
Both farmed and wild-caught salmon are suitable for this recipe, but for the most tender and buttery result, opt for farmed salmon due to its higher fat content.
If using frozen salmon fillets, ensure they are fully thawed in the refrigerator before cooking.
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Ingredients
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4 (6–ounce) skin-on salmon fillets
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4 teaspoons olive oil
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1/2 teaspoon kosher salt
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Freshly ground black pepper, to taste
For the optional sauce
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4 tablespoons salted butter
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2 small cloves garlic, finely minced
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2 tablespoons freshly-squeezed lemon juice
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1 teaspoon honey or maple syrup
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2 teaspoons finely chopped parsley, optional
Method
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Preheat the oven to 275°F.
Line a baking sheet with parchment paper.
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Prepare the salmon:
Place the four salmon fillets on the parchment-lined pan, skin side down. Drizzle each fillet with 1 teaspoon of olive oil then season with the salt and a few cracks of black pepper. Use your fingers to rub the oil and seasonings evenly across each fillet.
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Slow-roast the salmon:
Roast the salmon until the fillets are slightly firm to the touch and begin to flake when you stick a fork into the center, 20 to 28 minutes, depending on the thickness of the fillets and whether you’re using wild-caught or farmed salmon (wild-caught will cook more quickly). The inside flesh will be opaque yet very moist and the thickest part of each fillet should read 120 to 130°F with an instant-read thermometer.
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Make the optional sauce:
While the salmon roasts, melt the butter in a small saucepan over medium-low heat. Add the minced garlic and cook until fragrant, about 1 minute. Add the lemon juice, honey, and a few cracks of freshly ground black pepper. Stir everything together and cook until the sauce has reduced by about half and coats the back of a spoon, about 5 minutes.
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Riley Morgan simplifies health and wellness topics, providing readers with practical advice and insights. Dedicated to empowering others, Riley covers everything from mental health to medical breakthroughs.
