
Check out our healthy Blackened Salmon recipe! It features juicy salmon with lemon-butter broccoli and a blend of spices to satisfy your seafood cravings. With simple ingredients and easy steps, you can indulge in a tasty meal that keeps you on track. Let’s get started!
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Preparation and cooking overview
If you want a tasty meal without spending hours in the kitchen, this Keto Salmon Recipe is perfect. In just 20 minutes, you can have a delicious meal on the table. Simply coat the salmon with a special spice blend, pan-sear it until crispy, and sauté some broccoli in lemony butter. Serve them together, and enjoy a quick and easy dish that doesn’t skimp on flavor!
Chef’s note
Want to make this pan-seared blackened salmon recipe your own? Feel free to experiment! If broccoli’s not your thing, try our popular Cauliflower Rice or Keto Arugula Salad as a side dish. And if you enjoy a touch of sweetness, don’t hesitate to drizzle some keto-friendly maple syrup on the cooked salmon for a delightful twist.
🐟 Ingredients for this blackened salmon recipe
Here’s a list of all the simple ingredients you’ll need to make this keto blackened salmon at home:
For the salmon
For the broccoli

Ingredient substitutions
If any of the ingredients aren’t to your taste or you don’t have them on hand, feel free to substitute them with other options that fit your keto diet:
Additional ingredients
Elevate the flavor profile of this healthy meal with these optional ingredients:

Cooking tools required
To make this easy Blackened Salmon recipe, you’ll need the following tools:
Tool substitutes list

How to make Blackened Salmon: step-by-step guide
Cooking methods
Preparation steps
- Gather and measure all the ingredients.
- Defrost the salmon filets if frozen. Pat them dry with paper towels.
- Melt ½ cup unsalted butter in a microwave or a small saucepan and set it aside.
- Wash a medium-sized broccoli head, pat it dry, and cut it into florets.
- Squeeze out four tablespoons of fresh lemon juice and discard the seeds.
Cooking instructions
Cook the salmon filets
- Mix paprika, cayenne pepper, onion powder, salt, white and black pepper, thyme, basil, and oregano in a small bowl. Mix them to make the blackened salmon seasoning.
- Lay the salmon filets skin side down on a tray.
- Brush both sides of the filets with ¼ cup of melted butter. Sprinkle and press the seasoning onto the meat side, ensuring it’s fully coated.
- Melt two tablespoons of butter in a large cast-iron skillet over high heat.
- Place the filets in the skillet, skin side down, and cook for 2-5 minutes until blackened.
- Flip the filets, add the remaining butter, and cook for 3 to 5 minutes until the flesh side is blackened and flaky.
Cook the broccoli florets
- Steam or blanch the broccoli florets until they’re tender but still crisp. Drain any leftover water.
- Melt a tablespoon of butter in the same saucepan on medium heat. Add the steamed broccoli, stirring until it’s coated with butter.
- Squeeze fresh lemon juice over the broccoli, then add sea salt and black pepper to taste.
- Take the saucepan off the heat, and serve the lemon-butter broccoli with the blackened salmon filets. Enjoy!

Chef’s pro tip
Before cooking the salmon, get that skillet nice and hot. A hot pan gives you that perfect crispy edge on the filets. Keep an eye on them to avoid overcooking. Pull them off the heat slightly before they’re done. Let them sit for a few minutes to finish cooking. They’ll be spot-on when it’s time to dig in!
What to serve with blackened salmon?
The blackened salmon in a cast iron skillet is delicious on its own, but you can make the meal even more exciting with these keto-friendly dishes:

How to make it healthier?
You can make this dish even healthier by using less salt. Instead, focus on other flavorful spices to keep the taste just right.
Time-saving tips
What can I prepare ahead of time?

Storage and reheating instructions
Storage tips
Reheating best practices
Recipe wrap-up conclusion
Our Blackened Salmon paired with lemon butter broccoli is more than just a meal; it’s a delightful combination of taste and convenience. Perfect for anyone looking for a speedy keto-friendly dish, it’s versatile enough for a fancy dinner or a quick, satisfying lunch.
So why not add a little zest to your meal plan with this popular recipe? With easy-to-follow steps and common ingredients, it’s sure to become a regular in your cooking lineup. Give it a whirl, and let us know how your delicious creation turns out!

Looking for more keto salmon recipes? Here are some tasty suggestions!
Frequently asked questions
📖 Recipe

Blackened Salmon
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Ingredients
For the salmon
- 4 salmon filets boneless (about 1 pound)
- ½ cup unsalted butter melted
- 2 tablespoons paprika
- 1 tablespoon ground cayenne pepper
- 1 tablespoon onion powder
- 2 teaspoons sea salt
- ½ teaspoon ground white pepper
- ½ teaspoon freshly ground black pepper
- ¼ teaspoon dried thyme
- ¼ teaspoon dried basil
- ¼ teaspoon dried oregano
For the broccoli
- 4 cups broccoli florets
- 4 tablespoons butter
- 4 tablespoons fresh lemon juice
- Sea salt to taste
- Freshly ground pepper to taste
Instructions
Cook the salmon filets
-
Mix paprika, cayenne pepper, onion powder, salt, white and black pepper, thyme, basil, and oregano in a small bowl. Mix them to make the blackened salmon seasoning.
-
Lay the salmon filets skin side down on a tray.
-
Brush both sides of the filets with ¼ cup of melted butter. Sprinkle and press the seasoning onto the meat side, ensuring it’s fully coated.
-
Melt two tablespoons of butter in a large cast-iron skillet over high heat.
-
Place the filets in the skillet, skin side down, and cook for 2-5 minutes until blackened.
-
Flip the filets, add the remaining butter, and cook for 3 to 5 minutes until the flesh side is blackened and flaky.
Cook the broccoli florets
-
Steam or blanch the broccoli florets until they’re tender but still crisp. Drain any leftover water.
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Melt a tablespoon of butter in the same saucepan on medium heat. Add the steamed broccoli, stirring until it’s coated with butter.
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Squeeze fresh lemon juice over the broccoli, then add sea salt and black pepper to taste.
-
Take the saucepan off the heat, and serve the lemon-butter broccoli with the blackened salmon filets. Enjoy!
Video
Nutrition
The post Blackened Salmon Recipe with Lemon Butter & Broccoli 🐟 appeared first on Cast Iron Keto.
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