Place the chicken breast in a shallow dish and pour the buttermilk over it, letting it marinate for at least 15 minutes.
In a separate small bowl, combine the almond flour, smoked paprika, sea salt, and black pepper.
Remove the chicken from the buttermilk, allowing excess to drip off, then dredge it thoroughly in the almond flour mixture.
Lightly coat the chicken with avocado oil spray and place it in the air fryer at 375°F for 12 to 15 minutes, flipping halfway through until golden and crispy.
While the chicken cooks, whisk together the Greek yogurt, egg white, oat flour, and baking powder in a medium bowl until smooth.
Preheat a waffle iron, lightly spray with avocado oil, and pour the batter in, cooking until the waffle is firm and slightly browned.
Place the crispy chicken on top of the warm waffle and finish with a drizzle of maple syrup.