Blackened Salmon with Cajun Spice and Lemon Butter

Add some spice to your weeknight menu with this easy Blackened Salmon recipe. The salmon cooks up tender and juicy with a crispy, flavorful crust from homemade blackened seasoning. It’s a healthy, protein-packed dinner that’s on the table in minutes.

Blackened salmon on a plate with a fork flaking a corner

Seafood is a regular on my dinner rotation, and salmon is one of my favorites because it’s nutritious, versatile, and quick to prepare. I often make simple preparations like lemon-dijon baked salmon and broiled salmon, but this blackened version brings bold flavor and a delightful crust that elevates the fish without much fuss.

This Blackened Salmon recipe uses a blend of warm spices in a blackened seasoning that’s slightly spicy with a hint of sweetness. The salmon is brushed with a high smoke point oil so the seasoning sticks, then seared in a hot skillet until a crisp, dark crust forms. The result is a satisfying contrast of textures — crunchy outside, flaky and moist inside.

The method is straightforward and fast, making it perfect for busy evenings or an easy weekend meal. With just a few ingredients and minimal hands-on time, this dish is a reliable option for a family dinner or a simple, elegant plate for guests.

Blackened salmon filets in a cast iron skillet with limes

Why you’ll love this recipe

  • Blackened salmon is crispy on the outside, tender and juicy on the inside, and packed with bold flavor.
  • It’s quick and easy to make — most fillets cook in about 4–6 minutes total.
  • This is a healthy dinner that’s low carb, dairy-free, and can be gluten-free depending on the seasoning used.
  • Salmon is versatile — serve it with rice, potatoes, salad, or in tacos.

Recipe ingredients

This blackened salmon recipe uses only a few ingredients. If you like, prepare the blackened seasoning ahead of time so it’s ready whenever you need it.

Blackened salmon recipe ingredients
  • Salmon fillets. Use about 1.5 pounds total (four 6-ounce fillets works well). Wild salmon is recommended for flavor and quality.
  • Blackened seasoning. Use a homemade blackened seasoning or a quality store-bought blend. Adjust heat to taste.
  • High smoke point oil. Avocado oil is used here; grapeseed oil, ghee, or another high smoke point oil will also work.

See the recipe card below for exact ingredient quantities and measurements.

How to make this recipe

This blackened salmon is fast to prepare with minimal steps. If you prepare the seasoning in advance, dinner comes together even sooner.

Pro tip: Use an oil with a high smoke point because the pan gets very hot. Oils with low smoke points can burn and impart an off flavor to the fish.

Full instructions are in the recipe card below.

How to make blackened salmon collage
  1. Pat the salmon dry with paper towels, then drizzle the top of each fillet with oil and rub evenly. Sprinkle blackened seasoning over the top of the fillets and let them rest at room temperature for 10–15 minutes.
  2. Heat a non-stick or cast iron skillet over medium-high heat. Add the remaining oil, then place the fillets top-side down and cook until a dark, crispy crust forms, about 2–3 minutes. Flip and cook 2–3 minutes more, or until the fish flakes easily with a fork and the fat begins to render.
Blackened salmon in the skillet with parsley and lime

Recipe FAQs

When should you season salmon?

Season salmon 10–15 minutes before cooking so the spices have time to adhere and begin to flavor the surface.

How long to cook salmon in a skillet?

Cook over medium-high heat for about 2–3 minutes per side for typical fillets, adjusting for thickness. The fish is done when it flakes easily with a fork.

How to tell when salmon is done?

It should flake easily with a fork and the fat along the surface will start to render. Internal temperature for medium is about 125–140°F; 145°F is fully cooked.

Blackened salmon filet on a white plate with parsley and lime

Serving suggestions

Blackened salmon is extremely versatile and pairs well with many sides. Try one of these ideas:

  • Serve with coconut rice or garlic mashed Yukon gold potatoes for a comforting plate.
  • Keep it low-carb with roasted vegetables or a classic coleslaw.
  • Top a butter lettuce or Greek salad with a flaked fillet for a lighter meal.
  • Use the salmon as taco filling and top with fresh pineapple salsa and guacamole.

Recipe notes

  • Pro tip: Choose an oil with a high smoke point to avoid burning the oil while searing the fish.
  • Adjust the amount of blackened seasoning to suit your preferred spice level.
  • This method also works well with other firm fish or large shrimp.
  • Store leftovers in the refrigerator for up to 3 days.
Blackened salmon on a plate with a bite taken out

More salmon recipes you’ll love:

  • Crispy salmon cakes with lemon-dill sauce
  • Garlic butter salmon
  • Miso-orange salmon with coconut mango rice
  • Salmon Niçoise salad
  • Maple orange teriyaki salmon bowls

Did you try this recipe? If so, leave a review below or tag @flavorthemoments on social media to share your results.

Blackened salmon on a plate with a fork flaking a corner

Blackened Salmon Recipe

Blackened Salmon is crispy on the outside, juicy on the inside, and packed with bold flavor. It’s a healthy seafood recipe that’s simple to make and ready in under 20 minutes.

Servings: 4

Prep Time: 15 mins

Cook Time: 20 mins

Total Time: 35 mins

Equipment

  • Lodge 12″ cast iron skillet (or other heavy skillet)

Ingredients

  • 3 tablespoons avocado oil, divided (substitute ghee or another high smoke point oil)
  • 4 — 6 ounce wild salmon fillets
  • 1 tablespoon blackened seasoning, or more to suit your taste
  • Lime wedges and fresh parsley for serving (optional)

Instructions

  1. Blot each salmon fillet dry. Using 1 tablespoon of oil, drizzle oil over the top of the fillets.
  2. Sprinkle blackened seasoning evenly over the top and let the fillets sit at room temperature for 10–15 minutes.
  3. Heat the remaining 2 tablespoons of oil in a non-stick or cast iron skillet over medium-high heat. Place the fillets top-side down and cook 2–3 minutes until nicely charred and the fillet releases easily from the pan.
  4. Flip the fillets and cook an additional 2–3 minutes until the fat begins to render and the fish flakes easily with a fork. Serve with lime and parsley if desired.

Notes

  • Pro tip: Use a high smoke point oil to avoid burnt or rancid flavors.
  • Adjust seasoning amounts to match your preferred spice level.
  • Method works well with other firm fish or shrimp.
  • Store leftovers in the refrigerator for up to 3 days.

Nutrition (per serving, approximate)

Calories: 283 kcal, Carbohydrates: 2 g, Protein: 34 g, Fat: 14 g, Saturated Fat: 2 g, Cholesterol: 94 mg, Sodium: 367 mg, Potassium: 847 mg, Fiber: 1 g, Sugar: 1 g

Nutrition is estimated and intended as a guideline for informational purposes only.

Course: Main Dishes   Cuisine: American   Author: Marcie

All recipes and images © Flavor the Moments.