Slice the chicken breast into even strips and soak them in the buttermilk for 10 minutes to tenderize.
In a shallow dish, whisk together the almond flour, arrowroot starch, garlic powder, smoked paprika, sea salt, and black pepper.
Dredge each chicken strip in the flour mixture, pressing firmly to ensure an even coating, then lightly mist with avocado oil.
Place the chicken in the air fryer basket at 400°F and cook for 10 to 12 minutes, flipping halfway through, until golden and crispy.
While the chicken cooks, whisk the oat flour, egg white, Greek yogurt, and baking powder in a small bowl until a smooth batter forms.
Pour the batter into a preheated, lightly greased waffle iron and cook until the steam stops and the edges are slightly crisp.
Place the hot waffle on a plate, top with the crispy chicken strips, and finish with a drizzle of pure maple syrup.