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Blackened Salmon with Cilantro Lime Butter Recipe

  • Author: Shawn Williams
  • Prep Time: 15 mins
  • Cook Time: 8 mins
  • Total Time: 18 mins
  • Yield: 2 1x
  • Category: Dinner
  • Cuisine: Cajun


Simple blackened salmon topped with garlicky cilantro-lime compound butter.


  • 2 6-8 ounce salmon filets, skin removed
  • 23 tablespoons blackening seasoning (such as Old Bay)
  • 1 tablespoon olive oil
  • 2 lime wedges for garnish

Cilantro lime butter

  • 3 tablespoons butter, softened
  • 1 garlic clove, minced
  • 1/2 lime, juice squeezed
  • 3 tablespoons cilantro, minced

Homemade blackening seasoning (makes 6 tablespoons)

  • 1 1/2 tablespoons paprika
  • 1 tablespoon garlic powder
  • 1 tablespoon onion powder
  • 1 tablespoon ground dried thyme
  • 1 teaspoon ground black pepper
  • 1 teaspoon cayenne pepper
  • 1 teaspoon dried basil
  • 1 teaspoon salt


For the cilantro lime butter

  1. Leave butter on the counter to soften. Alternatively, place butter in a small bowl or ramekin and microwave in 5-10 second intervals to soften. Do not melt. Add garlic, cilantro, and lime juice.
  2. Use a fork to mix the butter together until combined. Form the butter into an imperfect ball and keep in the fridge until ready to serve

For the salmon

  1. Generously season each salmon filet with blackening seasoning until fully coated on all sides. Note, store-bought blackening seasoning tends to be salty. If you’re salt sensitive, I’d recommend using a thin dusting. Squeeze a little lime juice over each side of each filet and rub it in.
  2. Heat 1 tablespoon of olive oil in a cast iron skillet on medium-high heat. Once hot, sear salmon for 3-4 minutes per side, flipping once, for medium. Sear for 4-5 minutes per side if you prefer your salmon more flakey and well done. Do not move, prod, or poke salmon while cooking. Leave it alone to let a crust form.
  3. Plate and top each salmon filet with a spoonful of cilantro lime butter and serve with a lime wedge and additional chopped cilantro.

Blackening seasoning

  1. Combine all ingredients in a small bowl or container and mix to incorporate. This recipe makes 6 tablespoons so you will have plenty extra.


This recipe works best in a cast iron skillet. You can alternatively grill the salmon for 3-4 minutes per side on medium-high heat. Just be sure to grease the grates well to ensure it doesn’t stick.


  • Serving Size: 1 piece
  • Calories: 537
  • Sugar: 2g
  • Sodium: 241mg
  • Fat: 34.1g
  • Saturated Fat: 13.4g
  • Carbohydrates: 10.6g
  • Fiber: 4.1g
  • Protein: 51.8g
  • Cholesterol: 158mg

Keywords: blackened salmon, how to blacken fish, cilantro lime butter


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