Preheat oven to 400°F (200°C), or air fryer to 375°F (190°C).
In a shallow bowl, whisk egg and milk together.
1 egg, 1 tbsp milk
In another bowl, mix coconut flour, parmesan, and all seasonings.
¼ cup coconut flour, 1 tbsp parmesan cheese, ½ tsp garlic powder, ½ tsp paprika, ⅛ tsp salt, ¼ tsp black pepper, 1 pinch cayenne
Dip chicken pieces into the egg mixture, then dredge in the coconut flour mix, pressing gently to coat.
2 chicken breast
Place on a parchment-lined baking sheet or in an air fryer basket.
Bake for 15–20 minutes, flipping halfway, or air fry for 10–12 minutes until golden and cooked through (internal temp: 165°F / 74°C).
Let rest a few minutes for max crisp.