1. **Prepare Chicken:** Season the chicken breast with salt, black pepper, and garlic powder. Lightly coat the seasoned chicken breast with bread crumbs.
2. **Air Fry Chicken:** Preheat air fryer to 390°F (199°C). Air fry the breaded chicken breast for 12-16 minutes, flipping halfway through (after 6-8 minutes), until cooked through and crispy. Cooking time may vary by air fryer brand.
3. **Prepare Chick-fil-A Sauce:** In a small bowl, combine honey, light mayo, mustard, sugar-free BBQ sauce, apple cider vinegar, onion powder, and sweetener. Mix well until smooth. This makes approximately 5 servings of sauce.
4. **Assemble Sandwich:** Place the cooked crispy chicken breast on a keto bun. Top with pickles and a desired amount of the prepared Chick-fil-A sauce.
