Place the chicken breast in a shallow bowl and pour the buttermilk over it, ensuring it is fully coated. Let it marinate for 20 minutes in the refrigerator.
In a separate small bowl, whisk together the almond flour, garlic powder, onion powder, sea salt, and black pepper.
Remove the chicken from the buttermilk, letting the excess drip off, then dredge it through the almond flour mixture until evenly coated.
Lightly grease the air fryer basket with avocado oil and place the chicken inside. Spritz the top of the chicken with the remaining oil.
Air fry at 400°F for 12-15 minutes, flipping halfway through, until the internal temperature reaches 165°F and the crust is golden brown.
While the chicken cooks, prepare the slaw by whisking the Greek yogurt, apple cider vinegar, and Dijon mustard in a medium bowl.
Add the shredded cabbage mix to the dressing and toss until well combined.
Serve the crispy chicken immediately alongside the zesty slaw for a balanced, clean-eating meal.