Preheat your air fryer to 400°F.
Slice the chicken breast into strips or cutlets for even cooking.
In a shallow bowl, whisk the egg. In another bowl, combine almond flour, garlic powder, salt, and pepper.
Dip each chicken piece first into the egg, allowing any excess to drip off, then dredge evenly in the almond flour mixture.
Lightly spray the coated chicken with cooking spray to help the crust crisp up.
Place the chicken pieces in the air fryer basket in a single layer and cook for about 10-12 minutes, flipping halfway through, until the chicken is cooked through and crispy.
Meanwhile, in a small saucepan, combine the fresh orange juice and orange zest. Bring to a gentle simmer over medium heat and cook for about 2 minutes until slightly reduced to form a light glaze. Adjust seasoning with a pinch of salt if desired.
Once chicken is done, transfer to a serving plate and drizzle the warm orange glaze over the top.
Serve immediately and enjoy your tangy, crispy, air-fried orange chicken.