Cajun salmon is one of those dishes that seems fancy and complex, but is actually quite easy to make at home. With just a few simple ingredients and techniques, you can have restaurant-quality blackened cajun salmon ready in under 30 minutes.
In this detailed guide I’ll walk you through everything you need to know to make tender, flaky cajun salmon with an incredible depth of flavor. You’ll learn how to choose the right salmon fillets, make your own cajun spice blend, properly season the fish get the perfect sear, and serve it with complementary sides for a complete cajun-inspired meal. Let’s get cooking!
Choosing the Right Salmon for Blackening
Wild-caught salmon is ideal for blackening because it has great flavor and holds up well to high heat cooking Good options include
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Coho – Mildly flavored and affordable coho is a Pacific salmon variety that’s readily available.
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Sockeye – Also called red salmon, sockeye has deep orange flesh and a robust flavor.
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King – The largest salmon species, king or Chinook has a very high fat content for richness.
Aim for salmon fillets that are at least 1-inch thick so they don’t overcook when seared. Skin-on fillets are preferred since the skin helps protect the flesh.
Avoid using farmed Atlantic salmon, which lacks the flavor and texture of wild varieties.
Mixing Up a Classic Cajun Seasoning
While ready-made Cajun seasoning blends can be used, homemade has superior flavor. Try this blend:
- 2 tablespoons paprika
- 1 tablespoon garlic powder
- 1 tablespoon onion powder
- 1 tablespoon dried oregano
- 1 tablespoon dried thyme
- 2 teaspoons cayenne pepper
- 1 teaspoon black pepper
- 1 teaspoon white pepper
- 1 teaspoon dried basil
- 1⁄2 teaspoon celery seed
Mix all the ingredients together until well combined. Store any extra in an airtight container for up to 3 months.
Feel free to tweak the spice amounts to suit your tastes. More cayenne gives extra heat while more black pepper adds bite.
Preparing the Salmon for Cooking
Rinse the salmon fillets under cold water and pat them completely dry with paper towels. Make sure no moisture remains on the fish.
Brush both sides of the salmon lightly with olive oil. This helps the seasoning adhere and promotes browning.
Generously season the flesh side of the fillets with the Cajun spice blend, pressing it into the fish. Flip and repeat on the skin side using a bit less seasoning.
Let the seasoned salmon sit at room temperature for 15-20 minutes before cooking. This allows it to absorb the flavors.
Choosing the Right Pan for Blackening
You’ll need a heavy stainless steel or cast iron skillet to achieve the signature blackening on the salmon. Avoid non-stick pans which can’t withstand the high heat.
Make sure to turn on your kitchen vent or open windows since smoking will occur.
Heat the pan over medium-high heat until very hot. A drop of water should sizzle and evaporate instantly when splashed in the pan.
Searing the Salmon to Perfection
When the pan is screaming hot, add just enough olive oil to coat the bottom. Carefully lay the salmon fillets in skin-side down.
Sear for 4-5 minutes without moving them until the spices darken and the skin releases from the pan.
Flip and sear the other side for just 1-2 minutes until slightly charred but still moist inside. Use a spatula to peek and check doneness.
The salmon is ready when opaque but still glistening in the center. Take care not to overcook.
Serving Your Blackened Salmon
Transfer the seared fillets to a plate and tent loosely with foil to keep warm.
Make a quick pan sauce by deglazing the skillet with chicken or fish stock and simmering until reduced slightly. Whisk in a pat of butter.
Serve the salmon topped with the pan sauce. Garnish with lemon wedges and chopped parsley.
Good side dishes include dirty rice, cornbread, collard greens or fried okra to complement the Cajun flavors.
Handy Tips for Cajun Salmon Success
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Chilling the salmon briefly firms it up which helps prevent overcooking when searing.
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Dry the fish very well so the seasonings will adhere properly.
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Use a large skillet so the fillets aren’t crowded, or work in batches.
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Keep the salmon skin-side down initially to prevent curling.
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Brush off any excess spices before flipping to prevent burning.
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Pull the salmon just before it’s fully opaque since it will continue cooking a bit more off heat.
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Take your time with the sear for the best crust, but don’t overdo it.
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Deglaze the pan right after cooking while it’s very hot for maximum flavor.
Frequently Asked Questions
What if my salmon sticks to the pan?
- Be sure the pan is hot enough before adding the oiled fish. Use a thin metal spatula to detach the salmon after searing.
Can I use foil instead of a skillet?
- Direct pan-searing is ideal to achieve the crust. Oven-roasting wrapped in foil will steam rather than brown the fish.
Should I marinate the salmon before cooking?
- Marinating isn’t necessary since searing happens quickly. But you can let it sit after seasoning to allow the spices to penetrate.
Can I use a whole salmon fillet instead of individual portions?
- For the best results, pan-sear fillets that are evenly sized and 1-inch thick. A whole fillet may cook unevenly.
What temperature should the salmon reach internally?
- For medium-rare salmon, aim for 125°F on an instant-read thermometer. Cook to 140°F for fully opaque, flaky fish.
Ready to Make Flavorful Cajun Salmon?
Cajun salmon made at home is super simple and incredibly delicious. With minimal time and just a handful of ingredients, you can serve up tender, spicy salmon fillets that look and taste gourmet.
Armed with the techniques in this guide, you’ll be able to nail perfectly blackened salmon every time. Customize the heat to your taste and enjoy with zesty creole sides for an amazing meal. Your family and friends will be thoroughly impressed. Give this recipe a try soon!
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If you parboil the potatoes in 1 t salt and 1/2 t baking soda they will come out extra crispy.
To make your own Creole seasoning, combine 1 tablespoon smoked paprika, 1 tablespoon chile powder, 1 teaspoon onion powder, 1 teaspoon garlic powder, 1/2 teaspoon cayenne pepper (or less, if desired), 1/2 teaspoon fine sea salt and 1/2 teaspoon black pepper in a small bowl and stir together. Store in an airtight container in a cool, dry place.
This was good. Did NOT use the whole tablespoon of salt that the recipe calls for. That would have rendered the dish inedible.
@Charlie no kidding, I have a super sharp one and finally found something (salmon skin) it struggled with!
We usually cook salmon skin side down. This recipe called for skin side up. If you aren’t going to eat skin, is there any difference?
Cooked this the other night, easy and quick. Very tasty. I had difficulty scoring the skin on the King Salmon even with my sharpest knife. Best take away was the recipe for Cajun Seasoning from Christina.Private comments are only visible to you.
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