Slice the chicken breast into thick strips and place them in a bowl with the buttermilk to marinate for at least 15 minutes.
In a shallow dish, whisk together the almond flour, arrowroot powder, smoked paprika, garlic powder, sea salt, and black pepper.
Remove each chicken strip from the buttermilk, letting the excess drip off, then dredge thoroughly in the flour mixture until well coated.
Lightly coat the air fryer basket with avocado oil spray and arrange the chicken in a single layer.
Air fry at 400°F for 10-12 minutes, flipping halfway through and spraying with a little more oil until the coating is golden and crispy.
While the chicken cooks, toast the whole grain waffle until it reaches your desired level of crispness.
Place the toasted waffle on a plate, top with the crispy chicken strips, and finish with a drizzle of pure maple syrup.