Easy Blackened Salmon

Spice up your next seafood dinner with this easy blackened salmon, which comes together with a homemade Cajun rub and just 5 minutes of prep. It’s crispy and deeply flavored on the outside, tender and buttery inside, and on the table in about 20 minutes.

Before You Get Started

A few tips that make a real difference here:

• Use skin-on fillets. The skin acts as a buffer between the flesh and the hot skillet, keeping the salmon moist and making it much easier to flip without falling apart. Skinless works in a pinch; just handle gently when turning.
• Preheat your skillet. Medium-high heat and a properly preheated cast iron pan are what create the signature blackened crust. If the pan isn’t hot enough, the salmon steams instead of sears.
• Adjust the cayenne to your crowd. As written, the seasoning is bold and slightly smoky with a moderate kick. Cut the cayenne in half for a milder version, or leave it out entirely for kids. Mix up a double batch and store the extra in a jar. You’ll reach for it often!

How to Make Blackened Salmon

This is one of the most straightforward salmon recipes you’ll make. A simple homemade spice rub, one hot skillet, and you’re done!

What does “blackened” mean? The fish is coated in a blend of herbs and spices, then seared in a very hot cast iron skillet. The heat chars the spice crust on the outside, creating a deeply flavored, dark exterior. It’s bold and smoky, not burned. It’s a technique rooted in Cajun cooking, popularized in the 1980s as a way to replicate charcoal grilling in a commercial kitchen.

Step 1: Mix the Seasoning

Combine the cumin, smoked paprika, cayenne, garlic powder, kosher salt, and black pepper in a small bowl. This is my go-to blackened seasoning recipe. If you already have a store-bought blackened seasoning on hand, that works as well.

Step 2: Season the Fish

Pat the salmon fillets dry with paper towels. Drizzle or spritz the flesh side with a little olive oil, then rub the seasoning mixture evenly over the top of each fillet. 

→ Patting the fish dry first is important. It helps the spice rub adhere and gives you a better crust in the pan.

Step 3: Sear in a Hot Skillet

Heat 1 tablespoon of olive oil and 2 tablespoons of butter in a large cast iron skillet over medium-high heat. Once the butter is melted and the pan is hot, place the salmon flesh-side down. 

Cook for about 4 minutes, or until the surface has a deep, even blackened sear.

→ A cast iron skillet is the best tool here. The heavy pan retains and distributes heat evenly, which is what gives you that characteristic crust. A large nonstick skillet works too, though the sear won’t be quite as pronounced.

Step 4: Flip and Finish

Gently flip the salmon with a spatula. Cook for another 4 to 5 minutes, or until the skin is crispy and the fish flakes easily with a fork. 

If you’re using an instant-read thermometer, you’re looking for 145°F at the thickest part of the fillet. The crust will be deep brown and the flesh opaque through to the center.

→ Don’t want to waste those drippings? With the salmon off the heat, swirl a little extra butter into the pan drippings and spoon it over the top of the fish as a quick pan sauce.

Step 5: Finish and Serve

Squeeze fresh lemon or lime juice over the fillets before serving. A few sprigs of fresh thyme, oregano, or parsley make a nice finishing touch.

Omg! I just finished eat this and all I can say is wow! That was by far the best fish I have ever eaten in my entire life! I didn’t mix everything in a bowl, I just sprinkled all of the seasons over the fillet and then pat it in well. Turned out AMAZING! Thanks for the recipe! This will be my go to fish seasoning.

– Tori

What to Serve With Blackened Salmon

This is a versatile weeknight main that pairs well with simple Southern-inspired sides. A few favorites that work especially well:

• Stick of Butter Rice
• Southern-Style Green Beans
• Oven Roasted Asparagus
• Traditional Coleslaw
• Sauteed Spinach
• Dill Roasted Potatoes
• Garlic Roasted Broccoli

The salmon is also great beyond the dinner plate. Pile the fillets onto toasted sandwich rolls with remoulade or tartar sauce for blackened salmon sandwiches. Flake them into Alfredo pasta for a quick weeknight bowl. Or use them as the base for salmon tacos topped with a quick mango salsa.

Storage & Leftovers

Refrigerator: Leftover blackened salmon keeps in an airtight container in the refrigerator for 2 to 3 days.

Freezer: Store in a freezer-safe container for up to 4 to 6 months. Thaw in the refrigerator overnight, or place the sealed bag in a bowl of cold water to quick-thaw.

Leftovers: Cooked salmon is great repurposed into salmon salad with mayonnaise, diced celery, pickle relish, and a pinch of salt. It’s delicious scooped with crackers or tucked into sandwiches.

Made this tonight to go on top of a salad and it was fantastic. Just enough spice to give it a kick but not make my nose run. The salmon was cooked perfectly with this recipe as well (and I always overcook salmon). Will be using in the future!

– Abby

Frequently Asked Questions

Does blackened mean spicy?

Blackened salmon served in restaurants is often quite spicy, but the beauty of making the rub at home is full control over the heat. Cut the cayenne in half for a milder result, or leave it out entirely. As written, the flavor is smoky, zesty, and moderately spiced. Noticeable, but not overwhelming.

Can I use skinless salmon?

Yes. The cooking time stays the same. Without the skin, just handle the fillets carefully when flipping. They’re more prone to breaking apart in the pan. A wide, thin spatula helps.

What other fish can I use?

Steelhead trout is an excellent substitute and works beautifully with this same seasoning and technique. Other firm, flaky fish like mahi mahi, tilapia, or snapper also blacken well. Avoid very thin or delicate fillets, which can fall apart in a screaming-hot pan.

More Easy Salmon Dinners

• Salmon Sandwich
• Baked Salmon Fillet
• Honey Maple Glazed Salmon
• Salmon Patties