Slice the chicken into cubes. As much as possible, cut them into equal sizes so they cook evenly.
Combine dill pickle juice and sugar. In a bowl, combine the dill pickle juice and sugar. Mix until the sugar dissolves.
Marinate the chicken. Add the chicken cubes to the mixture and let them soak and marinate in the refrigerator for at least 30 minutes, or even better, overnight. This will give your nuggets that classic Chick-fil-A flavor!
Prepare the breading station. Combine the dredge ingredients in a food storage container: flour, salt, powdered sugar, garlic powder, paprika, and pepper. In a small bowl, crack and beat the egg.
Preheat your air fryer to 400ºF (204ºC) for 5 minutes. This will ensure your nuggets cook evenly and get that golden crunch.
Bread the chicken nuggets. Remove the chicken from the marinade, allowing any excess liquid to drip off before adding them to the dredge. Next, place the chicken in the dredge container and shake until fully coated. Dip each chicken nugget in the beaten egg, one by one. Finally, transfer the nuggets to the same dredge container, allowing the excess egg to drip off and shake well.
Transfer the breaded nuggets to the air fryer. Arrange the breaded nuggets in a single layer in the air fryer basket. Spray the nuggets with avocado oil.
Air fry the Chick-fil-A nuggets at 400ºF (204ºC) for 10 - 12 minutes. Flip halfway through and spray with more oil if necessary.
Prepare the copycat Chick-fil-A dipping sauce. Mix the mayonnaise, dijon mustard, honey, BBQ sauce, lemon juice, and a pinch of salt in a small bowl. Stir well until you have a smooth and tasty dipping sauce.
Once done, remove the nuggets from the air fryer and let them cool slightly for about 5 minutes.
Serve and enjoy your Air Fryer Chick-fil-A Nuggets with the delightful dipping sauce.