This dish features tender, flaky white fish fillets (or lobster tails) coated in a smoky, savory blackened spice rub, cooked until perfectly golden-crisp on the outside, and served alongside a chilled lemon-herb tartar sauce. It makes for an incredible high-protein, low-carb meal option that cooks in under 15 minutes!

🍲 Recipe Overview & High-Value SEO Keywords

• Prep time: 10 minutes

• Cook time: 10 minutes

• Total time: 20 minutes

• Servings: 4 servings

• High-CPM Monetization Keywords: crispy air fryer cod recipe, easy keto fish recipes, high-protein weeknight dinner ideas, low-carb seafood recipes, air fryer blackened fish, best tartar sauce from scratch.

🛒 Ingredients List

For the Blackened Fish:

• 1.5 lbs cod fillets (or halibut, mahi-mahi, or lobster tails), patted dry with paper towels

• 1 tbsp olive oil or melted avocado oil

• 1 tsp smoked paprika

• 1/2 tsp garlic powder

• 1/2 tsp onion powder

• 1/2 tsp dried oregano or Italian seasoning

• 1/2 tsp cayenne pepper (adjust to taste for heat)

• 1/2 tsp coarse sea salt

• 1/4 tsp freshly cracked black pepper

For the Creamy Lemon Tartar Sauce:

• 1/2 cup mayonnaise (or Greek yogurt for a lighter option)

• 1 tbsp dill pickle relish (or finely chopped capers)

• 1 tsp Dijon mustard

• 1 tbsp fresh lemon juice

• 1 tbsp fresh dill or parsley, finely chopped

• 1/4 tsp lemon zest

• Salt & black pepper to taste

👩‍🍳 Step-by-Step Cooking Instructions

1. Prepare the Tartar Sauce: In a small bowl, whisk together mayonnaise, pickle relish, Dijon mustard, fresh lemon juice, lemon zest, and chopped herbs. Season with salt and pepper to taste. Cover and chill in the refrigerator while preparing the fish.

2. Season the Fish: Pat the fish fillets completely dry using paper towels (this ensures a nice crust). Lightly brush both sides of each fillet with olive oil. In a small ramekin, mix together smoked paprika, garlic powder, onion powder, oregano, cayenne, salt, and black pepper. Generously rub the spice mixture over all sides of the fish.

3. Air Fry: Preheat your air fryer to 400°F (200°C) for 3 minutes. Lightly coat the air fryer basket with non-stick cooking spray. Arrange the seasoned fillets in a single layer without overcrowding. Air fry for 8 to 10 minutes (flipping halfway through if preferred) until the outer crust is golden brown and the interior flakes easily with a fork (internal temperature reaches 145°F / 63°C).

4. Serve: Transfer the hot, crispy fish fillets to serving bowls or plates. Garnish with additional fresh herbs and lemon wedges, and serve alongside the creamy chilled tartar sauce.

📊 Nutritional Information (Per Serving, Estimated)

• Calories: ~280 kcal

• Protein: 26 g

• Carbohydrates: 3 g

• Dietary Fiber: 1 g

• Sugars: 1 g

• Total Fat: 18 g (includes tartar sauce)

• Saturated Fat: 3 g

• Sodium: 580 mg

💡 Chef’s Pro-Tips for Success

• Oven Baking Alternative: If you do not have an air fryer, bake the fish at 425°F (220°C) on a parchment-lined baking sheet for 12–15 minutes, or sear in a hot cast-iron skillet over high heat with butter/oil for 3–4 minutes per side.

• Extra Crispy Texture: Add 1-2 tablespoons of finely grated Parmesan cheese to the spice mix for an even crunchier crust.

❓ Frequently Asked Questions (Related Questions)

1. How do I keep white fish from getting soggy in the air fryer?

The key is removing moisture before cooking. Always thoroughly pat the fillets dry with paper towels prior to applying oil and seasonings. Additionally, do not overcrowd the air fryer basket, as circulating hot air is essential to create that crispy exterior.

2. Is air fryer cod suitable for Keto and Low-Carb diets?

Yes! This recipe is naturally keto-friendly and gluten-free because it uses a spice rub instead of traditional flour or breadcrumbs. Each serving contains less than 3g of net carbs.

3. How long can leftover cooked fish and tartar sauce be stored?

Store leftover fish in an airtight container in the refrigerator for up to 2 days. Reheat gently in the air fryer at 350°F (175°C) for 3–4 minutes to regain crispness. The homemade tartar sauce can be stored covered in the fridge for up to 5 to 7 days.