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    Home » Recipes » Seafood

    Blackened Salmon

    Published: March 12, 2023 · Updated: March 12, 2023 · By: Krissy · Leave a Comment
    This post may contain affiliate links. Please read my disclosure policy.

    Jump to Recipe Print Recipe

    These Blackened Salmon filets are made with a homemade Cajun seasoning blend that creates a flavorful and slightly spicy crust, keeping the salmon moist and delicious. This recipe will walk you through how to create perfectly cooked flaky salmon by using a specific cooking technique using a very hot skillet.

    blackened salmon over mashed potatoes.

    To make the spice mixture, I started with my Cajun seasoning mix and added a bit of brown sugar. The small amount of sugar really helps with the blackening technique by sealing the crust and creating the most flavorful fish.

    Why I love this recipe

    • Perfect for busy weeknights because salmon cooks up quickly and easily
    • Homemade blackened seasoning that uses a blend of spices you probably already have in your pantry
    • Salmon is full of healthy fats and B vitamins

    Ingredients needed

    To make this recipe you will need fresh salmon filets (okay if they were previously frozen), melted butter, olive oil, salt, and freshly ground black pepper.

    For the blackening seasoning mix, you will need smoked paprika, brown sugar, garlic powder, onion powder, cayenne pepper, dried oregano, and dried thyme.

    ingredients needed to make blackened salmon filets.

    How to make Blackened Salmon

    Prep the salmon

    Combine all spice rub ingredients in a small bowl. Stir well to combine.

    Pat salmon filets dry and brush the flesh side with melted butter. Reserve any excess butter for later.

    Cajun seasoning with wild caught salmon filets.
    mix seasonings
    brushing salmon filets with melted butter.
    brush on melted butter

    Spoon the blackening spices on top of the butter-coated salmon. Gently pat down to create a nice crust.

    Adding Cajun seasoning blend to butter brushed salmon filets.
    add seasonings to salmon
    Adding Cajun seasoning blend to butter brushed salmon filets.
    use all of the seasonings

    Cook the salmon

    Heat a large heavy-bottomed skillet or cast-iron skillet over medium-high heat (my induction burner was set to 8 out of 10). When the pan is hot, add the olive oil and any remaining butter.

    Place the salmon filets, seasoning side down with their skin side up, onto the oil-coated hot cast iron skillet. Cook until a golden to dark brown crust forms on the bottom. Try not to move them around much but you can gently peek underneath to see when they are done.

    Adding Cajun seasoning blend to butter brushed salmon filets.
    press seasonings so they stick
    searing Cajun seasoned salmon filets with skin side up.
    sear in oil with skin side up

    When the filets are ready to flip, gently lift them using a fish spatula and transfer them to a plate, skin side down. Then, use a rubber spatula to scrape as much of the seasoned butter into a small dish. This will be used to spoon over the salmon when it's served. Return the skillet to the heat on the stove.

    Place the filets back in the hot pan, skin side down, and continue cooking until the internal temperature of each filet reaches 125°F.

    blackened salmon filets on plate with lemon and butter sauce.
    set aside and save seasoned butter
    cooking salmon to an internal temperature of 125°F.
    finish cooking skin side down

    The skin should stick to the pan and you can use a spatula to lift the fish fillet off to serve. Spoon on additional melted butter from the pan, if desired, and a generous squeeze from a lemon.

    How to serve Blackened Salmon

    I enjoy this easy recipe for a weeknight dinner over mashed potatoes with a squeeze of lemon juice. A healthier option would be to swap the potatoes with steamed brown rice or cauliflower rice.

    Another great way to enjoy this recipe is to make salmon tacos topped with shredded cabbage, mango salsa., and a squeeze of lime juice.

    I actually think the best way to enjoy blackened salmon is to eat the leftovers on a big green salad the next day for lunch.

    blackened salmon over mashed potatoes.

    Recipe Tips

    • Spice level - The amount of spice in this recipe was just hot enough that my son could eat it. If you are cooking for anyone who is sensitive to spicy foods, reduce the amount of cayenne pepper. Likewise, if you really like it hot, you can increase the cayenne. Just remember, a little goes a long way.
    • Trust your thermometer - Cooking times will vary depending on the size of the salmon filets as well as their starting temperature. Cooking salmon over a high temperature can easily overcook the fish if you deviate from the cooking process. Just be sure to flip the salmon as soon as the spice blend has formed a crust on the first side, and then remove it from the heat when the thermometer says it has reached the desired temperature.
    • Wild-caught salmon - Look for bright orange wild-caught salmon. Farmed salmon just won't taste as good. Costco sells individual vacuum-sealed portions that are the perfect size for this easy blackened salmon recipe.
    spooning flavored butter over blackened salmon.

    Storage and reheating

    Store any leftovers in an airtight container in the refrigerator and enjoy within 3-5 days.

    Instead of reheating the leftover salmon, I highly recommend eating it cold on a salad.

    tender flaky blackened salmon filets.

    Cajun inspired recipes

    If you love blackened salmon, you may want to try these favorites:

    • Cajun Shrimp Pasta
    • Crawfish Étouffée
    • Cajun Chicken Alfredo Pasta
    • Crab Cakes with Remoulade sauce

    If you’ve made this or any other recipe on my site, let me know in the comment section how it turned out. I love hearing from my readers!

    You can also follow along on PINTEREST, FACEBOOK and INSTAGRAM to see more amazing recipes to satisfy any foodie craving!

    blackened salmon over mashed potatoes.

    Blackened Salmon Filets with Homemade Spice Mix

    These Blackened Salmon filets are made with a homemade Cajun seasoning blend that creates a flavorful and slightly spicy crust, keeping the salmon moist and delicious.
    5 from 1 vote
    Print Pin Rate SaveSaved!
    Course: Main Course
    Cuisine: American
    Prep Time: 5 minutes
    Cook Time: 10 minutes
    Total Time: 15 minutes
    Scale: 4 servings
    Recipe Created By: Krissy Allori

    Ingredients

    • 4 6-ounce salmon filets (skin on)
    • 2 tablespoons butter (melted)
    • 2 teaspoons smoked paprika
    • 1 teaspoon brown sugar (packed)
    • 1 teaspoons garlic powder
    • 1 teaspoon onion powder
    • ½ teaspoon cayenne pepper
    • ½ teaspoon dried oregano
    • ½ teaspoon dried thyme
    • ½ teaspoon freshly ground pepper
    • ½ teaspoon salt
    • 2 tablespoons olive oil
    • lemon slices for serving

    Instructions

    • Combine all spice ingredients in a small bowl. Stir well to combine.
      Cajun seasoning with wild caught salmon filets.
    • Pat salmon filets dry and brush flesh side with melted butter. Reserve any excess butter for later.
      brushing salmon filets with melted butter.
    • Spoon spices on top of butter-coated salmon. Gently pat down to create a nice crust.
      Adding Cajun seasoning blend to butter brushed salmon filets.
    • Heat large heavy bottom pan or cast iron skillet over medium-high heat (my induction burner was set to 8 out of 10). When the pan is hot, add the olive oil and any remaining butter.
    • Place the salmon filets, seasoning side down and skin side up, onto the oil-coated hot pan. Cook until a golden to dark brown crust forms on the bottom. Try not to move them around much but you can gently peek underneath to see when they are done.
      searing Cajun seasoned salmon filets with skin side up.
    • When the filets are ready to flip, transfer them to a plate, skin side down. Then, use a rubber spatula to scrape as much of the seasoned butter to a small dish. This will be used to spoon over the salmon when it's served. Return the skillet to the heat.
      blackened salmon filets on plate with lemon and butter sauce.
    • Place the filets back in the hot pan, skin side down, and continue cooking until the internal temperature of each filet reaches 125°F.
      cooking salmon to an internal temperature of 125°F.
    • The skin should stick to the pan and you can use a spatula to lift the filet off to serve. Spoon on additional melted butter from the pan, if desired, and a generous squeeze from a lemon.

    Notes

    Recipe Tips

    • Spice level - The amount of spice in this recipe was just hot enough that my son could eat it. If you are cooking for anyone who is sensitive to spicy foods, reduce the amount of cayenne pepper. Likewise, if you really like it hot, you can increase the cayenne. Just remember, a little goes a long way.
    • Trust your thermometer - Cooking times will vary depending on the size of the salmon filets as well as their starting temperature. Cooking salmon over a high temperature can easily overcook the fish if you deviate from the cooking process. Just be sure to flip the salmon as soon as the spice blend has formed a crust on the first side, and then remove it from the heat when the thermometer says it has reached the desired temperature.
    • Wild-caught salmon - Look for bright orange wild-caught salmon. Farmed salmon just won't taste as good. Costco sells individual vacuum-sealed portions that are the perfect size for this easy blackened salmon recipe.

    NUTRITION INFORMATION

    Calories: 102kcal | Carbohydrates: 3g | Protein: 2g | Fat: 10g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.2g | Cholesterol: 18mg | Sodium: 340mg | Potassium: 78mg | Fiber: 1g | Sugar: 1g | Vitamin A: 783IU | Vitamin C: 0.4mg | Calcium: 15mg | Iron: 1mg
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