01 - Preheat oven to 400°F or air fryer to 375°F. Line baking sheet with parchment paper or spray air fryer basket with nonstick spray.
02 - Toss chicken pieces with salt, black pepper, and garlic powder in a bowl until evenly coated.
03 - Mix almond flour and parmesan cheese in a shallow dish. Dredge each chicken piece in mixture, pressing lightly to adhere coating.
04 - Place coated chicken on prepared baking sheet or in air fryer basket in single layer.
05 - Bake for 15–18 minutes or air fry for 12–15 minutes, turning halfway through, until golden brown and cooked through.
06 - Whisk mayonnaise, sriracha, rice vinegar, sweetener, and sesame oil in bowl until smooth and well combined.
07 - Transfer cooked chicken immediately to bowl with sauce. Toss gently until evenly coated.
08 - Transfer to serving platter. Garnish with scallions and sesame seeds. Serve hot.