
Air fryers are a great way to cook catfish healthily and deliciously. With an air fryer, you can enjoy catfish that is crispy on the outside and tender and flaky on the inside, without the heavy oils and fats of traditional frying methods. The ideal temperature to cook catfish in an air fryer is 400°F, with cooking times ranging from 10 to 25 minutes, depending on the size of the fillets and your desired crispness. Before air-frying, it is recommended to soak the catfish in milk or buttermilk to remove any fishy flavour and then coat it with a breading or spice mixture.
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What You'll Learn

Preheat the air fryer to 400°F
Preheating your air fryer is an important step in the cooking process. It ensures your catfish cooks evenly and becomes wonderfully crispy. To preheat your air fryer to 400°F, follow these steps:
Firstly, ensure your air fryer is switched on and the temperature is set to 400°F. Depending on your model, you may need to press a 'preheat' button or similar. Refer to your air fryer's instruction manual if you're unsure.
Next, you'll need to wait for your air fryer to reach the desired temperature. This may take a few minutes, and some air fryers will beep or flash to indicate they're ready. If your air fryer doesn't have this feature, keep an eye on the time and give it around 5 minutes to preheat.
While you're waiting, you can prepare your catfish fillets. Many recipes recommend soaking the fillets in milk or buttermilk for 30 minutes or more before cooking to remove any fishy flavor. You can also season your fillets with a spice mixture or coat them in cornmeal or a breading mixture.
Once your air fryer has preheated to 400°F, you can carefully place your seasoned catfish fillets inside. Be sure not to overcrowd the basket, as this will affect the cooking. It's best to cook in batches if you have a lot of fillets.
Finally, close the air fryer and let the catfish cook for around 10 minutes before flipping and cooking for another 10-12 minutes, or until it reaches your desired level of doneness.
Preheating your air fryer to 400°F is a crucial step in achieving that perfect, crispy texture for your catfish fillets.
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Soak the catfish in buttermilk to remove the fishy flavour
To cook catfish in an air fryer, preheat the air fryer to 400°F. Spritz the catfish fillets with olive oil and place them in the fryer basket, ensuring they are not overcrowded. Cook for 10 minutes, then flip the fillets and cook for another 10 minutes. Finally, flip the fillets again and cook for a further 2-4 minutes, until the catfish is crispy and golden brown.
To remove the fishy flavour from catfish, it is recommended to soak the fillets in buttermilk before cooking. This process can take as little as 30 minutes or be done overnight for a more thorough removal of the fishy taste. The buttermilk is also often combined with other ingredients, such as hot sauce, to further enhance the flavour.
The buttermilk soak is a popular method for reducing the "'muddy' or "fishy" flavour that catfish can sometimes have. It is a simple technique that can significantly improve the taste of the fish, making it more mild and pleasant.
In addition to the buttermilk soak, there are a few other steps you can take to minimise the fishy flavour. Firstly, ensure that you clean the catfish thoroughly and remove any red meat or dark areas from the fillets. You can also try slitting the gills and bleeding the catfish immediately after catching them, as this is said to reduce the fishy taste.
By combining the buttermilk soak with these additional preparation techniques, you can effectively minimise the fishy flavour of catfish and enjoy a delicious, mild-tasting meal.
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Pat the catfish dry and add seasoning
Pat the catfish dry with a paper towel. This will help the seasoning stick to the fish and make it crispier. If you have time, it's a good idea to soak the catfish in milk or buttermilk for 30 minutes before cooking to remove any fishiness. You can also do this with frozen catfish, but make sure to thaw it completely before cooking.
Once the catfish is dry, it's time to season. There are many seasoning options for catfish, but a classic combination is cornmeal, cayenne, garlic powder, and onion powder. You can also add a sprinkle of fish fry seasoning to both sides of each fillet. Another option is to coat the fillets in a seasoned cornmeal mixture. This will give the catfish a crispy, golden brown crust. You can also add a few shakes of hot sauce to the buttermilk before soaking the catfish for a spicy kick.
Don't be afraid to experiment with different spices and seasonings to find your perfect combination. You can also adjust the spice level to your taste, adding more cayenne for extra heat or more garlic and onion powder for flavor.
After seasoning, drizzle or spritz the fillets with olive oil or avocado oil. This will help the seasoning stick to the fish and promote crisping. Place the fillets in the air fryer basket in a single layer, ensuring they are not overcrowded so that they cook evenly.
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Place the catfish in the air fryer basket
When you're ready to cook, place the catfish fillets in the air fryer basket in a single layer. Do not stack the fish and do not overcrowd the basket. Cook in batches if you need to. It's important to leave enough space to ensure the fish cooks evenly and gets crispy.
If you're using a gluten-free breading, spray the bottom grill of the air fryer with a high-heat oil like avocado or canola. Then, place the breaded catfish fillet in the basket. If you're not using a gluten-free breading, you can spritz the basket and the tops of the fillets with olive oil.
If you're cooking without breading, you can skip the olive oil spritz. However, it's still important to ensure the fillets are dry before placing them in the basket. You can pat them with a paper towel or, for best results, soak the fillets in milk or buttermilk for 30 minutes or more to remove the fishy flavor.
Finally, check the internal temperature of the catfish with a thermometer. It should reach 145°F (63°C) to ensure it's safe to eat while retaining its moisture and flavor.
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Cook for 20-25 minutes, flipping halfway through
To cook catfish in an air fryer, preheat your air fryer to 400°F. Place the catfish fillets in the basket, preferably in a single layer to avoid overcrowding. Spritz or spray the fillets with olive oil or another high-heat oil like avocado or canola. You can also use a gluten-free breading, coating the fillets in a mixture of cornmeal, gluten-free flour, and spices.
When cooked through, the catfish should be golden brown and crispy on the outside, with flaky, tender flesh on the inside. The internal temperature should reach 145°F (63°C).
You can serve your crispy catfish fillets with tartar sauce, hot sauce, lemon wedges, and classic Southern sides like coleslaw, hushpuppies, or cheesy grits.
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Frequently asked questions
The ideal temperature to cook catfish in an air fryer is 400°F.
The cooking time depends on the size of your catfish fillets and whether you use catfish nuggets or fillets. It can take anywhere between 10 to 25 minutes.
To get crispy catfish, spray the basket with olive oil or avocado/canola oil. Place the catfish in a single layer, ensuring they don't overlap. Cook in batches if needed. Flip the fish halfway through the cooking time.
Before air frying, it is recommended to soak the catfish in buttermilk for 30 minutes to remove any fishy flavor. Then, coat the fillets with a cornmeal mixture or a spice blend.











































