For extra crispy chicken, double coat the tenders by dipping back into the buttermilk after the first breadcrumb coating, then dredge in breadcrumbs again. Adjust the heat level by modifying the amount of cayenne pepper and hot sauce. Use cooking spray or lightly brush oil to help crisp the breadcrumbs. Avoid overcrowding the air fryer basket. Marinate overnight if possible for best flavor. Serve with pickles, white bread, or coleslaw. Gluten-free and buttermilk substitute options are available. Chicken thighs or drumsticks can be used with adjusted cooking times.