Step 1

Mist your air fryer trays or basket with the cooking spray. Put your tilapia fillets on the prepared racks in a single layer and brush them with the olive oil.

Step 2

Air fry the tilapia at 400°F (200°C) for 8 minutes. While the tilapia cooks, work on the compound butter.

Step 3

Chop the garlic chives as finely as possible. Mix the softened butter, miso, and chives together. Refrigerate this mixture to let it firm up (if time allows).

Step 4

After the 8 minutes of cooking are up, flip the fish and switch the position of the racks in the air fryer. If using fresh fish, cook for 4 more minutes at 400°F (200°C). If using frozen fish, cook for 6 more minutes at 400°F (200°C).

Step 5

Use a meat thermometer to check the temperature in the thickest part of the fish. Fin fish should reach a minimum safe internal temperature of 145°F (63°C).

Step 6

To serve, put 1 tablespoon of your garlic chive miso butter on each fish fillet. Finish your fish with a sprinkle of black pepper and a squeeze of lemon, if desired.