
Air fryers are a great way to cook catfish fillets, offering a healthier alternative to deep-fried fish. The cooking time for catfish fillets in an air fryer varies depending on the size of the fillets and the desired level of crispiness. The air fryer temperature should be set between 375°F and 400°F, and the fillets should be cooked for around 20 minutes, flipping them halfway through to ensure even cooking. Before cooking, the catfish fillets can be soaked in milk or buttermilk to remove any fishy flavour, and then coated in a breading mixture before being placed in the air fryer.
Characteristics and Values Table for Air Frying Catfish Fillets
| Characteristics | Values |
|---|---|
| Preheat temperature | 375º F, 385°F (196°C), 400°F (200°C) |
| Preheat time | 5 minutes |
| Temperature to cook | 385°F (196°C), 400°F (200°C) |
| Cooking time | 11-22 minutes |
| Cooking time at 400°F (200°C) | 20-22 minutes |
| Cooking time range at 385°F (196°C) | 13-15 minutes |
| Flip time | After 8, 10 or 13 minutes |
| Additional cooking time after flip | 2-5 minutes |
| Oil to spray basket | Avocado, canola |
| Oil to spray catfish | Olive oil |
| Internal temperature | 145°F (63°C) |
| Soaking time | 30 minutes, 1 hour |
| Soaking liquid | Milk, buttermilk |
| Coating | Cornmeal, fish fry breading, mustard-mayo mixture |
| Sides | Coleslaw, hushpuppies, cheesy grits, lemon wedges, tartar sauce, hot sauce |
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What You'll Learn

Soaking the catfish fillets in milk or buttermilk
Soaking catfish fillets in milk or buttermilk is a crucial step in preparing catfish for cooking. It helps to eliminate any unwanted "muddy" or "fishy" flavours that the fish may have. This is especially true for wild-caught catfish, which is more likely to have a "muddy" taste than farmed catfish. By soaking the fillets in milk or buttermilk, you can effectively remove this off-putting flavour and enjoy a milder-tasting fish.
When soaking catfish fillets, it is recommended to use a plastic zipper bag or a large bowl. Place the fillets in the container and pour milk or buttermilk over them, ensuring they are fully coated and submerged. The soaking time can vary depending on your preference and the strength of the flavour you want to eliminate. Some recipes suggest soaking for at least 30 minutes, while others recommend a longer soak of a few hours or even overnight. If you are short on time, a quick soak of 10 to 15 minutes can also be effective.
It is important to note that you should not rinse the catfish fillets after soaking them in milk or buttermilk. Instead, you can proceed directly to the next step of your recipe, such as coating the fillets with a cornmeal mixture or seasoning. The buttermilk brine is considered part of the breading process, helping to achieve an extra crispy texture when fried.
While milk or buttermilk are the most commonly used liquids for soaking catfish, there are alternative options as well. Some people choose to use vinegar-infused milk, creating a buttermilk substitute by mixing one tablespoon of vinegar with one cup of milk. Additionally, non-dairy milk options or other liquids like beer can be used as a substitute for milk or buttermilk, depending on your preferences and the desired flavour profile.
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Preparing a cornmeal mixture for dredging
Step 1: Gather Your Ingredients
You will need cornmeal, also known as corn flour, as the primary ingredient for the dredging mixture. Fine, white cornmeal is ideal, but if you don't have access to it, regular cornmeal with a little flour added can work just fine. The flour helps to create a smoother texture and avoid a gritty mouthfeel.
Step 2: Combine Dry Ingredients
In a shallow dish or a resealable plastic bag, combine the cornmeal with your desired seasonings. You can use a variety of seasonings to create your custom blend. Some popular options include garlic powder, Cajun seasoning, lemon pepper, paprika, seafood seasoning, or a simple blend of salt and pepper. If you want a more traditional Southern flavour, consider adding some flour to the mixture as well. This blend of dry ingredients forms the basis of your cornmeal dredge.
Step 3: Add Liquid Ingredients (Optional)
If you want a batter-like consistency for your dredge, you can add liquid ingredients to the mixture. This step is entirely optional and depends on your personal preference. You can use milk, buttermilk, or even a mixture of both, to create a wet dredge. Some people also add eggs to their liquid mixture, which helps the breading adhere better to the fish. You can also add hot sauce to the liquid mixture to give it an extra kick.
Step 4: Mix Thoroughly
Once you've added all your desired ingredients, mix them thoroughly until you achieve a consistent blend. Make sure there are no lumps in the mixture. If you're using a plastic bag, seal it tightly and shake it vigorously. If you're using a shallow dish, you can use a whisk or a fork to mix the ingredients until they are well combined.
Step 5: Adjust Seasonings
After mixing, take a moment to taste the mixture and adjust the seasonings according to your preference. This step ensures that your catfish will be seasoned just right. Remember, it's easier to add more seasoning than to take it away, so start with a smaller amount and gradually increase until you're happy with the flavour.
Step 6: Prepare for Dredging
Now that your cornmeal mixture is ready, it's time to prepare your catfish fillets for dredging. Pat the fillets dry with a paper towel to remove any excess moisture. If you've chosen to use a liquid dredge, you can dip the fillets into the mixture, ensuring they are well coated. If you're using a dry dredge, simply sprinkle the mixture generously over the fillets, making sure to coat all sides evenly.
By following these steps, you'll have a perfect cornmeal mixture for dredging your catfish fillets. This technique will give your catfish that iconic Southern crispy texture and delicious flavour. Enjoy your homemade air-fried catfish!
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Preheating the air fryer and coating the basket
Preheating your air fryer is a crucial step to ensure even cooking and crisping results. It is recommended to preheat your air fryer to the temperature specified in the recipe for three to five minutes. This allows the appliance to warm up to the desired temperature before adding the food, resulting in faster and more thorough cooking.
To preheat your air fryer, start by ensuring that all removable parts, such as the basket, are clean and dry. Insert the basket into the unit, and either select the preheat setting or manually program the cook time. If your air fryer does not have a preheat setting, you can manually preheat it by selecting the air fry setting and setting the desired temperature.
For smaller air fryers, preheating typically takes around two to three minutes, while larger or oven-style air fryers may require up to five minutes. It is important to refer to your air fryer's manual to determine if preheating is recommended for your specific model and to follow any preheating instructions provided.
Once your air fryer has finished preheating, open the basket and coat it with a thin layer of olive oil or non-stick cooking spray. This step helps prevent the fish from sticking to the basket and makes it easier to remove once cooked. You can use an olive oil sprayer or simply drizzle olive oil and use a brush to evenly distribute it across the basket.
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Cooking the catfish fillets
Cooking catfish fillets in an air fryer is a quick, easy, and healthy way to prepare this mild-tasting white fish. The air fryer method is a great alternative to deep-frying, resulting in a crispy, crunchy, and tender fillet without the excess calories and fat.
Before cooking, it is recommended to soak the raw catfish fillets in milk or buttermilk for at least 30 minutes to remove any fishy or "muddy" flavor. For frozen fillets, you can soak them in room-temperature milk for an hour.
To cook the catfish fillets, first, preheat your air fryer to 400°F (200°C) for about 5 minutes. You can also preheat at a slightly lower temperature of 385°F (196°C) if you want to ensure even cooking and a crispy texture.
While the air fryer is preheating, prepare the fillets by patting them dry with paper towels. This step is important to ensure that any breading or seasoning will stick to the fish. Next, season the fillets. You can use a simple mixture of salt, pepper, garlic powder, and lemon pepper, or get creative with Cajun seasoning, oregano, cayenne pepper, and blackening spices. For a more complex flavor profile, create a mustard-mayo blend and brush it onto both sides of the fillets before coating them in a fish fry breading mix.
Once your fillets are seasoned and your air fryer is preheated, it's time to cook! Place the fillets in the air fryer basket in a single layer, ensuring they don't overlap. Depending on the size of your air fryer and the fillets, you may need to cook in batches. Spray the fillets with olive oil or another high-heat oil like avocado or canola. Avoid using a low-smoke point oil like olive oil if your air fryer doesn't have an oil-spraying function, as this can make the oil turn rancid.
Close the air fryer and cook the fillets for about 10 minutes. Then, open the air fryer and flip the fillets. For extra crispy fillets, you can spritz them with oil again at this point. Cook for another 10 minutes. Finally, flip the fillets one more time and cook for an additional 2-4 minutes, depending on your desired level of crispness. The total cooking time should be around 20-22 minutes.
Your catfish fillets are now ready to serve! For a classic Southern dish, pair the fillets with tartar sauce, hot sauce, lemon wedges, and sides like coleslaw, hushpuppies, or cheesy grits. Enjoy your delicious and crispy air-fried catfish!
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Reheating and storing the catfish fillets
Reheating catfish fillets in an air fryer:
Air fryers are a great way to reheat catfish fillets, as they can help maintain the crispy texture of the fish, preventing it from becoming soggy. They also heat up quickly and cook food evenly, ensuring uniform heating. Here is a general guide for reheating your catfish fillets in an air fryer:
- Place the leftover fillets in the air fryer basket in a single layer.
- Air fry at 400 degrees Fahrenheit for about 4 minutes or until warmed through.
Storing catfish fillets:
If you are not planning to cook the catfish fillets right away, it is important to properly store them to ensure they stay fresh and safe to eat. Here are some general guidelines for storing catfish fillets:
- Rinse the fillets and place them in a dry, airtight plastic container.
- Store the container in the refrigerator until you are ready to cook. It is recommended to cook or freeze the fillets within 3 days of storage.
- If you are not planning to cook the fillets within 3 days, consider freezing them. Freeze the fillets in a vacuum-sealed bag or a zipper bag with as much air removed as possible.
- Label the bag with the number of fillets, the date, and the species of fish. This will help you keep track of when the fillets need to be consumed and ensure you are using the oldest fillets first.
- Catfish fillets can be stored in the freezer for up to 6-12 months.
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Frequently asked questions
It is recommended that you cook catfish fillets in an air fryer for 20-22 minutes at 400°F (200°C).
Before cooking, you should pat the catfish fillets dry and sprinkle fish fry seasoning onto both sides of each fillet. You should also spritz olive oil on top of each fillet.
To get crispy catfish fillets, you should flip the fillets halfway through the cooking time. You can also spritz the fillets with olive oil before placing them in the air fryer.
You should set your air fryer to 400°F (200°C) when cooking catfish fillets.
This depends on the size of your air fryer basket and the size of your fillets. You should avoid overcrowding the air fryer basket to ensure even cooking and crispiness on all sides.











































