Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
Submerge the chicken in the buttermilk in a shallow bowl and let it marinate for at least 15 minutes.
In a separate shallow dish, whisk together the almond flour, arrowroot powder, smoked paprika, garlic powder, sea salt, and black pepper.
Remove the chicken from the buttermilk, allowing excess to drip off, then dredge thoroughly in the flour mixture until fully coated.
Preheat your air fryer to 375°F and lightly coat the basket with 1 teaspoon of avocado oil.
Place the chicken in the basket and mist the top with the remaining teaspoon of avocado oil.
Air fry for 12 to 15 minutes, flipping halfway through, until the exterior is golden-brown and the internal temperature reaches 165°F.
While the chicken cooks, prepare the slaw by whisking the Greek yogurt, apple cider vinegar, and Dijon mustard in a medium bowl.
Toss the shredded cabbage mix into the dressing until evenly coated.
Serve the crispy chicken immediately alongside the cool, creamy slaw.