Preheat your air fryer to 400°F (about 5 minutes).
Prep the fish: Pat the branzino dry with paper towels.Make two shallow diagonal slices on each side of the fish to help it cook evenly.Rub sea salt all over the skin and inside the cavity. Add a very light sprinkle of black pepper if using. Place sliced lemon and onion inside the cavity.Drizzle a tiny bit of olive oil all over the skin. 1 whole branzino
Place on the parchment paper.
Sea salt, Light black pepper, 1 lemon, ¼ onion, olive oil
Place fish in the air fryer and Cook at 400°F for 8 minutes on one side.
Flip carefully with tongs, and cook for another 8 minutes.
Flip again, and air fry for a final 3 minutes.
Optional: Air fryer broil or max crisp mode for 1–2 minutes to get the skin extra golden.
Remove and rest: Take the fish out, remove the lemon and onion, and place the fish on a platter.Drizzle lemon juice with olive oil mixture over the branzino and add any additional garnish or sauce of your choice. Serve and Enjoy! Juice of half a fresh lemon, Dash of rice vinegar, Drizzle of good olive oil, 1 Pinch of oregano or fresh chopped parsley, 1 Pinch Optional: thin-sliced scallions and a touch of red pepper flakes