The secret of Korean fried chicken is the double frying. Double frying in the air fryer works just as well as it does with deep frying, but way easier. The secret is to coat your chicken after the first fry using a spray/mist of oil. It’s not totally necessary, but it really helps. To make Korean fried chicken in an air fryer:
Coat the chicken. I coated the chicken first with oil to help with heat transfer, then salt and pepper, then corn or potato starch, which is what Asian-style chicken is classically made with for a lighter, crispier outer shell.
Air fry the chicken. 400ºF for 15 minutes. There’s no need to preheat the air fryer.
Make the sauce. While the chicken is air frying, make the sauce by combining all the sauce ingredients, then heating it up to a very slight boil (or even just microwaving it for a minute).
Flip the chicken. When 15 minutes is up, flip the chicken and continue air frying for another 5 minutes. Remove and let cool for 5 minutes.
Double fry and sauce. After the chicken has cooled, spray it with oil again, then air fry it for the final time at 400ºF for 5 minutes. Remove and toss in sauce, then enjoy immediately.