Serves: 2–4
Prep Time: 10 minutes
Cook Time: 8–10 minutes
If you love big flavor, this Cajun-style swordfish recipe delivers. Thick, meaty swordfish steaks coated in a spicy Cajun blackening seasoning, seared until crispy on the outside and juicy on the inside — just like the best seafood restaurants in the Gulf Coast and South Florida. This is one of the easiest and tastiest ways to cook fresh swordfish.
🛒 Ingredients (Cajun Seasoning Mix)
Use your own Cajun blend or mix this for authentic flavor:
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1 teaspoon smoked paprika
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1 teaspoon cayenne pepper (adjust for heat)
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1 teaspoon garlic powder
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1 teaspoon onion powder
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1 teaspoon dried thyme
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1 teaspoon dried oregano
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½ teaspoon sea salt
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½ teaspoon black pepper
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Optional: ½ teaspoon brown sugar (helps with caramelization)
Swordfish & Marinade:
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2 swordfish steaks (1–1.5 inches thick)
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2 tablespoons olive oil
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1 tablespoon lemon juice
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1 tablespoon melted butter
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Fresh lemon wedges for serving
👨🍳 Instructions
1. Prepare the Cajun Rub
Mix all Cajun spices together in a bowl.
This blend is perfect for blackened seafood, Cajun fish recipes, and grilled Gulf Coast-style dinners.
2. Season the Swordfish
Pat the swordfish dry — this helps create the crisp blackened crust.
Brush both sides with olive oil and lemon juice.
Coat each steak generously with the Cajun seasoning mix.
Press it into the fish so it forms a thick, even crust.
🔥 3. Sear or Grill the Swordfish (Blackened Style)
Heat a cast-iron pan or grill to medium-high.
If using a pan, add a splash of oil or butter.
Cook the swordfish:
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4–5 minutes per side for 1-inch steaks
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A bit longer for thicker cuts
You want a dark, flavorful crust — the signature blackened Cajun seafood look.
Swordfish should stay moist and firm, not overcooked.
✨ 4. Finish with Butter & Lemon
As soon as the swordfish comes off the heat, brush with melted butter and squeeze fresh lemon over the top.
The butter melts into the Cajun crust and creates that classic New Orleans seafood flavor.
🍽️ Serving Suggestions
This Cajun swordfish pairs beautifully with:
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Dirty rice
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Grilled corn on the cob
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Red beans & rice
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Coleslaw
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Roasted potatoes
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Cajun pasta
🌶️ Tips for a Perfect Cajun Swordfish
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Use high heat — it’s essential for blackening
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Don’t move the fish early; let the crust form
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Swordfish is best cooked medium
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For extra spice, add more cayenne or a dash of hot sauce on top
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Cajun seasoning also works for mahi-mahi, snapper, tuna, and grouper