
Cooking frozen fish in an air fryer is a quick, easy, and healthy way to prepare a delicious meal. It is a game-changer for those who are short on time, as it eliminates the need for thawing and can produce tender, flaky meat with a perfectly crispy exterior in under 20 minutes. This method works for a variety of fish, including barramundi, and can be paired with numerous side dishes to create a nutritious and convenient weeknight dinner.
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What You'll Learn

Cooking time and temperature
Firstly, preheat your air fryer. Most recipes recommend preheating the air fryer to ensure even cooking. The ideal temperature for preheating is around 400°F (200°C). However, some recipes suggest preheating to slightly lower temperatures, such as 380°F (193°C) or 390°F (198°C). Preheat your air fryer for about 5 minutes or until it reaches the desired temperature.
Once preheated, it's time to cook your frozen barramundi. Place the fillets in the air fryer basket, ensuring they are in a single layer with a little space between them to allow for proper air circulation. This step is crucial for even cooking and to prevent overcrowding, which can affect the cooking time and crispiness of the fillets.
The cooking time for frozen barramundi in an air fryer can range from 8 to 15 minutes, depending on the thickness of the fillets and your desired level of doneness. For thinner fillets or a more well-done texture, shorter cooking times of around 8 to 10 minutes may be sufficient. For thicker fillets or a more moist and flaky texture, cooking times of 12 to 15 minutes are recommended.
During the cooking process, it is essential to monitor the fish to prevent overcooking. You can check the doneness by carefully flipping or removing a fillet and inspecting its colour and texture. The fish should appear golden brown and easily flake apart when done. Additionally, you can use a food thermometer to check the internal temperature, which should reach 140°F to 145°F for perfectly cooked fish.
If you prefer your barramundi with a crispy coating, you can air fry for an additional 2 to 4 minutes after flipping the fillets. This step ensures that both sides of the fish achieve a delicious crispiness.
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Choosing the right air fryer
Air fryers have become increasingly popular since their introduction in 2010. They are versatile, allowing you to air-fry, roast, bake, dehydrate, reheat, and more. With the growing demand, the market is flooded with various air fryer models, making it challenging to choose the right one. Here's a guide to help you select the perfect air fryer for your needs:
Types of Air Fryers
Air fryers come in different types, each serving a unique purpose:
- Single Basket Air Fryers: These are the most basic type, featuring a single basket for cooking.
- Double Basket Air Fryers: As the name suggests, they have two baskets, allowing you to cook multiple items simultaneously.
- Mini Air Fryers: Compact and perfect for small kitchens, RVs, or dorm rooms.
- Oven-Style Air Fryers: These are larger air fryers with smart cooking features, often combining toaster oven functionality.
Factors to Consider
When choosing an air fryer, consider the following:
- Capacity: Air fryers vary in size, from small to large capacities. Consider the number of people you typically cook for and choose a size that accommodates your needs.
- Cooking Functions: Different air fryer models offer various cooking functions. Some basic models only air-fry, while others provide additional features like air-roasting, baking, dehydrating, and more. Choose a model that aligns with the types of dishes you want to prepare.
- Ease of Use and Cleaning: Look for an air fryer with intuitive controls that are easy to operate. Additionally, consider the ease of cleaning; some models have removable, dishwasher-safe parts, making cleanup a breeze.
- Noise Level: Air fryers can vary in noise levels during operation. If a quiet appliance is important to you, look for models specifically designed to operate quietly.
- Price: Air fryers range from budget-friendly options to more expensive models. Determine your budget and compare features within your price range.
Remember to read reviews, compare models, and consider your specific needs and preferences when making your decision. With the right air fryer, you'll be able to enjoy the convenience and versatility of this popular kitchen appliance.
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Preparing the barramundi
First, take the frozen barramundi fillets out of the freezer. If you are using an air fryer grill pan, opt for a non-stick coating to make cleaning easier. If you are using a basket, you can line it with parchment paper to prevent sticking. However, this is not necessary as the fish will not stick if it is cooked directly from frozen.
Next, brush the fillets with a coating of cooking oil, such as olive oil or vegetable oil. You can also add extra virgin olive oil to make the fish beautifully crisp. If you want to add more depth of flavour, marinate the fillets in a mixture of olive oil, lemon juice, minced garlic, and your favourite herbs for 30 minutes to an hour before cooking.
Then, season the fillets. You can season with salt and pepper, or use your favourite spices. Spices such as onion powder, red pepper flakes, or garlic powder are great options. Squeeze about a teaspoon of lemon juice onto the fish, or brush with lemon pepper. You can also add a slice of lemon to each fillet.
If you want to bread your barramundi, dip the fillets in beaten egg and then coat them with gluten-free breadcrumbs.
Finally, place the fillets in the air fryer, ensuring they are in a single layer and not overlapping to allow the hot air to circulate. If you are using a grill pan, be careful not to overlap the fillets. If you need to cook more, cook the fillets in multiple batches.
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Cooking and serving
To cook frozen barramundi in an air fryer, start by preheating your air fryer to 380°F–400°F (193°C–200°C). While the air fryer is preheating, take the frozen fillets out of the freezer. Brush the fillets with olive oil or vegetable oil and season both sides with salt and pepper, or a mixture of olive oil, lemon juice, minced garlic, and your favourite herbs. You can also add some dried seasoning and a squeeze of lemon juice. Bread the fillets by dipping them in beaten egg and coating them with gluten-free breadcrumbs if you like.
Once the air fryer is preheated, place the fillets inside, ensuring they are in a single layer with a little bit of space between them so that the hot air can circulate properly. Air fry for 10–15 minutes, or until the fish is golden brown and flakes easily. You can check if the fish is cooked by using a food thermometer to check the internal temperature, which should be 140°F–145°F.
Serve the barramundi hot with a squeeze of fresh lemon or lime juice, and pair it with your favourite air-fried vegetables, such as carrots, parsnips, butternut squash, green beans, asparagus, or broccoli. You can also serve it with tartar sauce, aioli, garlic/lemon butter, soy-ginger sauce, sriracha mayo, nuoc mam (Vietnamese fish sauce), or hot mustard. If you want to make a meal out of it, you can air-fry some French fries, sweet potato fries, or tater tots for a fish and chips dinner. Alternatively, serve the fillets in a corn tortilla with your favourite taco toppings, or make a fish sandwich by placing the fillets on a bun.
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Storing leftovers
If you have any leftover barramundi after cooking it in an air fryer, there are a few ways to store it. Firstly, let the fish cool down completely. Then, place the leftovers in an airtight container and store them in the refrigerator for up to 2 days. If you want to store the leftovers for longer than 2 days, you can freeze them. Again, use an airtight container and store them in the freezer.
When you're ready to enjoy your leftover barramundi again, there are a few ways to reheat it. You can use an air fryer, preheating it to 350°F for 3 minutes. Wrap the fish fillets in aluminum foil and heat for 5 minutes or until warmed through. Alternatively, you can reheat the leftovers in the oven or on the stovetop. Just be aware that fish tends to dry out quickly when reheated, so it's best not to use a very high temperature. To help prevent drying out, you can wrap the fish in foil or brush it with a little extra oil before reheating.
Another option for leftover barramundi is to enjoy it cold. It can be added to a salad or sandwich, or paired with a side dish such as a Lebanese Tabouli Salad.
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Frequently asked questions
It takes around 10-15 minutes to cook frozen fish in an air fryer.
Preheat your air fryer to 380-400°F.
Brush the fish with cooking oil such as olive oil or vegetable oil. Season both sides with salt and pepper.
You can serve the barramundi with tartar sauce, lemon or lime wedges, and a side of vegetables.











































