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Sep 17, 2021

Slow Roasted Salmon with Garlic Butter and Herbs

Roasting salmon filets in a low oven results in a wonderfully tender, super moist, and evenly cooked piece of fish. 


Slow roasting salmon is a complete revelation. The fat in the salmon slowly melts while the salmon is baking, and the resulting fish is incredibly moist. This method is the perfect way to avoid dried fish. 

Even the thinner ends of the filets are incredibly moist. 

I'm pretty sure this method would work well with other similarly-sized fish filets such as sea bass or cod. I can't wait to experiment. 

For the herbs in this dish, I used fresh thyme, but fresh parsley or dill would work beautifully too. 

Of course, not to sell quick cooking short, if you want your salmon quick, be sure to try chili glazed salmon, which takes just minutes, and is totally delicious.... or steamed salmon with an amazing fennel sauce

This is an easy and elegant dish you can prepare for dinner guests. It's pretty fuss free. Prep the fish in advance and refrigerate it. Pull it from the refrigerator about 20 minutes before baking, bake, and it's ready to serve. 

I love any dish that doesn't require me to spend much time in the kitchen after my guests have arrived. 

The cool thing too about this method is that, even if you leave it in the oven for a few extra minutes, you really can't overcook the fish because of the low oven temperature. 

For the garlic butter, I steeped some minced garlic in a combination of butter and olive oil before straining out the garlic pieces. If you're not a fan of garlic, you can just substitute a good quality olive oil and you'll still be happy with this salmon. 

Tips for making slow roasted salmon with garlic butter and herbs:

Roast the salmon until it is just beginning to look opaque in the middle, about 15 to 18 minutes. You can check the temperature with an instant read thermometer. It should register about 120 degrees F. 

Even if the outside of the salmon doesn't look completely done, resist the urge to cook it longer. With the low oven temperature, the salmon cooks evenly throughout, so the middle is as done as the outside. This is the secret to moist salmon filets. Trust me. It's like slow roasting roast beef.. or even sous vide!  

This salmon was tender, juicy, and luscious. It's probably my favorite salmon recipe so far. I actually used frozen wild salmon from the grocery store and was still thrilled with the results. Imagine how good it would be with fresh caught (although I'm totally happy with the flash frozen wild salmon that is available in the grocery store these days). 

Serve this salmon with your favorite rice or pasta along with an arugula salad and garlic bread or your favorite make-ahead dinner rolls

If you have leftovers, I highly recommend incorporated them into a pesto and pasta dish

This month, the Fish Friday group is featuring recipes for oven roasted fish. Our host is my friend Wendy of A Day in the Live on the Farm

Be sure to check out everyone's oven roasted fish recipes:

Slow Roasted Salmon with Garlic Butter and Herbs

Slow Roasted Salmon with Garlic Butter and Herbs
Yield: 4 servings
Author: Karen's Kitchen Stories
Prep time: 25 MinCook time: 20 MinTotal time: 45 Min
Roasting salmon filets in a low oven results in a wonderfully tender, super moist, and evenly cooked piece of fish.


  • 4 tablespoons extra virgin olive oil, divided
  • 2 tablespoon salted butter
  • 4 garlic cloves, finely chopped
  • 4 6 to 8 ounce salmon filets, skin on
  • 2 tablespoons chopped fresh thyme
  • Kosher salt and freshly ground black pepper


  1. Combine two tablespoons of the olive oil, the butter, and the garlic together in a small sauce pan. Bring to a simmer and then heat over low heat and cook for 5 minutes. Let cool and strain out the garlic. 
  2. Heat the oven to 275 degrees F. Line a rimmed baking sheet with foil and brush the foil with the remaining olive oil. Place the salmon filets onto the baking sheet, skin side down. 
  3. Add the chopped thyme to the garlic butter mixture and stir. 
  4. Generously brush the garlic butter mixture over the salmon filets and then sprinkle each with kosher salt and freshly ground black pepper. Let the filets rest for 10 minutes. 
  5. Bake the salmon for 15 to 18 minutes, until the interior registers 120 degrees F and the salmon is opaque in the center. 
  6. Serve.  

Nutrition Facts



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Seafood, main dishes
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Would you like to comment?

  1. This sounds like the perfect recipe. I will keep the garlic, of course.

  2. Cooking slow at 275 F - a new way to consider here! Sounds tender and delicious! Gonna try it!

  3. This sounds delicious and love salmon.


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