This Air Fryer Blackened Cod is inspired by your picture: thick, flaky cod fillets with a smoky, spicy, golden-brown crust, paired with a rich, creamy garlic herb sauce. Buying cod at Aldi makes this an easy, budget-friendly seafood dinner you can prepare at home without deep-frying.
The secret is to pat the cod completely dry, season generously, lightly coat with oil, and avoid overcooking it.
Recipe details
Preparation
10 minutes
Air frying
8–12 minutes
Servings
4 people
Temperature
200°C / 400°F
1. Ingredients
For the cod
- 4 cod fillets, approximately 150–200 g each
- 1½ tablespoons olive oil or avocado oil
- 1 teaspoon smoked paprika
- 1 teaspoon regular paprika
- 1 teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon dried thyme
- ½ teaspoon dried oregano
- ½ teaspoon black pepper
- ½ teaspoon salt, or to taste
- ¼ teaspoon cayenne pepper, optional
- 1 teaspoon lemon juice, for serving
For the creamy garlic herb sauce
- ½ cup (120 g) mayonnaise
- ¼ cup (60 g) sour cream or plain Greek yogurt
- 2 garlic cloves, finely minced
- 1 tablespoon fresh parsley, chopped
- 1 teaspoon fresh dill or ½ teaspoon dried dill
- 1 tablespoon lemon juice
- 1 teaspoon Dijon mustard, optional
- 1–2 tablespoons water, to adjust consistency
- Salt and black pepper, to taste
For a lighter sauce, use Greek yogurt in place of the mayonnaise and sour cream.
2. Step-by-step instructions
Step 1: Prepare the cod
If using frozen Aldi cod, thaw it completely in the refrigerator. Remove it from the packaging and pat it very dry with paper towels.
Dry fish develops a better seasoned crust and releases less excess moisture during cooking.
Step 2: Make the blackened seasoning
Combine the smoked paprika, paprika, garlic powder, onion powder, thyme, oregano, black pepper, salt, and optional cayenne.
Brush the cod with oil, then coat all sides with the seasoning mixture. Press gently so it adheres to the fish.
Step 3: Preheat the air fryer
Preheat to 200°C (400°F) for approximately 3–5 minutes, following your air fryer’s instructions.
Lightly grease the basket or use an air-fryer-safe liner that does not block airflow. Never preheat with loose parchment paper inside.
Step 4: Air fry the cod
Place the fillets in a single layer with a little space between them.
Air fry at 200°C (400°F) for 8–12 minutes, depending on thickness. Start checking thinner pieces after 6–7 minutes.
There’s usually no need to flip delicate fillets, but you can turn thicker pieces carefully halfway through if your air fryer cooks unevenly.
Step 5: Check for doneness
The cod should be opaque and separate easily into flakes. For food safety, the thickest part should reach 63°C (145°F) on a food thermometer.
Avoid extending the cooking time unnecessarily, since cod dries out quickly.
Step 6: Make the garlic herb sauce
Whisk together the mayonnaise, sour cream or Greek yogurt, garlic, parsley, dill, lemon juice, and optional Dijon mustard.
Season with salt and pepper. Add a little water until the sauce reaches your preferred consistency.
Refrigerate for 10–15 minutes if time allows so the flavors blend.
Step 7: Serve
Transfer the cod to a warm plate. Squeeze a little lemon juice over the fish and sprinkle with fresh parsley.
Serve with a generous spoonful of creamy garlic herb sauce on the side, just like the presentation in your picture.
3. How to get that beautiful crust
- Dry the fish thoroughly. Excess moisture prevents browning.
- Use oil, not just dry seasoning. A thin coating helps the spices adhere and promotes browning.
- Choose smoked paprika. It adds a smoky, restaurant-style flavor.
- Leave room in the basket. Crowding traps moisture and prevents even cooking.
- Don’t add too much lemon before cooking. Add it after air frying for a fresher flavor.
- Adjust time to thickness. Thin Aldi fillets may cook much faster than thick center-cut pieces.
Note: Blackened seasoning creates a dark, flavorful crust, but the fish should not be burnt or bitter.
4. Nutrition information
Estimated nutrition per serving, including one-quarter of the creamy mayonnaise-based sauce.
| Nutrient | Per serving |
|---|---|
| Calories | 330–410 kcal |
| Protein | 32–40 g |
| Carbohydrates | 3–6 g |
| Fat | 19–27 g |
| Fiber | 1–2 g |
| Sugars | 1–3 g |
Actual values vary with fillet size, oil absorption, and the sauce ingredients. Using Greek yogurt instead of mayonnaise and sour cream can reduce the fat and calories.
5. Complete nut information and allergy guide
This recipe does not require nuts.
- Peanuts: Not intentionally included.
- Tree nuts: Not intentionally included.
- Fish: Cod is a major food allergen.
- Eggs: May be present in mayonnaise.
- Dairy: Sour cream and Greek yogurt contain dairy.
- Mustard: Present if Dijon mustard is used.
- Soy: Some mayonnaise, seasoning blends, or packaged sauces may contain soy or have cross-contact warnings.
For anyone with a nut allergy, check the labels on all packaged ingredients and use clean utensils and cooking equipment.
6. Frequently asked questions (Q&A)
Q1. Can I cook frozen Aldi cod directly in the air fryer?
You can, but the seasoning may not stick as well and the fish may release extra moisture. For the best crust, thaw it completely, pat it dry, and then season it.
Q2. Should I flip cod in the air fryer?
Usually not necessary for delicate fillets. If your air fryer heats unevenly or the fillets are especially thick, carefully flip them halfway through.
Q3. Why did my cod turn out watery?
The fish may not have been fully thawed or dried. Some frozen fish also releases more water than others. Thaw in the refrigerator and remove surface moisture before seasoning.
Q4. Why is my cod dry?
It may have cooked too long, especially if the fillets were thin. Start checking early and remove the fish when its center reaches 63°C (145°F).
Q5. Can I use fresh garlic instead of garlic powder?
Yes, but garlic powder distributes more evenly and is less likely to burn. Save fresh garlic for the sauce or use a small amount mixed into the oil.
Q6. Can I make the recipe without mayonnaise?
Yes. Use thick Greek yogurt with lemon juice, garlic, dill, parsley, salt, and pepper for a lighter sauce.
Q7. Is this recipe keto-friendly?
It is generally low in carbohydrates, particularly when served with a sugar-free sauce. Check seasoning labels and avoid sugary bottled sauces.
Q8. Can I use this seasoning on other fish?
Absolutely. It works well with haddock, pollock, tilapia, halibut, and salmon. Cooking time will depend on the thickness and type of fish.
Q9. Can I store leftover cod?
Refrigerate promptly in a covered container and consume within 3–4 days. Reheat gently in the air fryer at around 160°C (320°F) until heated through, taking care not to dry it out.
Q10. Can I make the sauce ahead?
Yes. Prepare it up to 2 days ahead and refrigerate in an airtight container. Stir before serving.
7. What to serve with air fryer blackened cod
Garlic potato wedges
A crispy, comforting side that complements the smoky spice crust.
Fresh Mediterranean salad
Cucumber, tomato, red onion, and lemon dressing balance the richness of the sauce.
Lemon herb vegetables
Broccoli, asparagus, or green beans make a light, colorful side.
My final tip: For the fish in your photo, use thick cod fillets, smoked paprika, garlic powder, thyme, and just enough oil to coat them. Air fry at 200°C (400°F), checking early, and pair with the cool garlic-dill sauce. You’ll get a bold crust, moist flaky fish, and a creamy contrast in every bite.
