You can use a sealable bag or a large bowl to brine the chicken. Add the chicken breasts to the bowl or sealable bag along with the pickle juice and buttermilk. Refrigerate for 30 minutes.\u00a0 \t Add the flour, paprika, garlic powder, salt, pepper, and sweetener to a large bowl, large enough to dredge the chicken. Stir to combine.\u00a0 \t Add the egg to a bowl large enough to dredge the chicken.\u00a0 \t Remove the chicken from the marinade and dredge both breasts in the beaten egg and then the flour. Place the chicken on the Air Fryer tray.\u00a0 \t Spritz the top of the chicken with peanut oil. Spray from a distance. \tAir fry at 400 degrees for 15-22 minutes, or until fully cooked.\u00a0 \t Every air fryer model and brand will cook at varying speeds. Monitor your results carefully, and adjust as needed.\u00a0 \t For toasted buns, toast the buns for 3-4 minutes at 400 degrees.\u00a0 \t Remove the chicken from the air fryer and assemble the sandwich.\u00a0 \t For the chick-fil-a sauce, combine the mayo, honey, BBQ sauce, and mustard in a bowl.\u00a0 \t Mix cornstarch and water in a separate small bowl, and then pour into sauce ingredients.\u00a0 \t Stir to combine and drizzle over chicken breast. Enjoy!