Spray the air fryer basket with olive oil spray and set it aside.
Place the beaten egg in a large bowl and the cornstarch in another large bowl.
Dip the chicken, a few pieces at a time, into the egg followed by the cornstarch.
Then, place the breaded chicken in the air fryer and cook at 375 for 12-14 minutes, or until the chicken is golden brown on the outside and registers 165F on an instant read thermometer.
Allow the chicken to cool for 5 minutes before saucing-- this will help prevent it from getting soggy.
For the Orange Sauce (while the chicken fries)
Combine all of the ingredients in a small saucepan over medium heat. Bring the mixture to a boil and reduce the heat to low. Allow the sauce to thicken until it can coat the back of a spoon-- about 2 minutes of simmering. Set aside to cool for at least five minutes before adding to the chicken.
Once the chicken and sauce have cooled slightly, add them both to a large bowl and toss to combine. Garnish with green onion, parsley, and/or sesame seeds. Enjoy immediately.