Place the chicken breast in a small bowl with the buttermilk to marinate for 15 minutes.
In a shallow dish, whisk together the almond flour, whole wheat flour, garlic powder, paprika, sea salt, and black pepper.
Remove the chicken from the buttermilk, dredge in the flour mixture until fully coated, and spray lightly with olive oil.
Place the chicken in the air fryer at 375°F and cook for 12-15 minutes until the exterior is golden and the internal temperature reaches 165°F.
While the chicken cooks, whisk the oat flour, egg whites, and baking powder in a small bowl until a smooth batter forms.
Pour the batter into a preheated waffle iron and cook until the waffle is fluffy and lightly browned.
Serve the crispy chicken over the warm waffle and finish with a drizzle of maple syrup.