Pound the chicken: Using either a meat mallet or any heavy object, pound out the chicken breast until the chicken breast is big enough to fit your bun.
2 Chicken breasts
Marinate the chicken: Add the chicken to a mixing bowl. Marinate in the hot sauce, pickle juice and milk. Let the chicken sit as long as you have time for at least 30 minutes.
½ cup Whole milk, ¼ cup Pickle juice, ¼ cup Louisiana hot sauce, 2 Chicken breasts
Dredge the chicken: To another mixing bowl, add the flour, spices and salt. Add in 2 tablespoons of the liquid marinade to the chicken and stir. Let most of the marinade drip off the chicken, and add to the seasoned flour. Dredge on both sides.
1 teaspoon Garlic powder, 1 teaspoon Cayenne pepper, 1 teaspoon Smoked paprika, 1 teaspoon Onion powder, ¼ teaspoon Old bay, ½ cup All purpose flour
Air fry: Spray the chicken on both sides with cooking spray. Put in the air fryer basket, and air fry for 10-15 minutes at 390°F. The timing will depend on your individual air fryer, check at around 10 minutes.
Assemble the sandwiches: Liberally spread the spicy mayonnaise on both sides of your brioche buns. Top with the chicken breast, bread and butter pickles, and finish with the top bun.
¼ cup Mayonnaise, 2 tablespoon Louisiana hot sauce, 1 teaspoon Cayenne pepper, 2 Brioche hamburger buns, Bread and butter pickles