Season chicken with salt and soak in buttermilk for 30 minutes (or up to 4 hours refrigerated) to tenderize.
Whisk melted butter, honey, paprika, cayenne, garlic powder, and salt in a bowl. Set aside.
Mix flour, panko, garlic powder, paprika, baking powder, and pepper in a shallow dish.
Lift chicken from buttermilk, let excess drip off, then coat in breading. Press gently to adhere. Let rest on a rack for 5 minutes.
Heat ½–¾ inch oil in a skillet over medium-high. Fry chicken in batches for 4–6 minutes per side until golden and cooked through. Transfer to paper towel-lined rack.
Brush hot cutlets generously with sauce right after frying. Let rest briefly.
Serve hot and crispy with extra sauce on the side.