Place your raw bone-in, skin-on chicken thighs in a mixing bowl or tray. Sprinkle kosher salt generously on the MEAT side of the chicken. Set aside and let rest for at least 15 minutes. The purpose here is to allow the salt to absorb INTO the meat, seasoning it throughout and locking in moisture.
Combine your spices in a small bowl. Add to your raw chicken in a mixing bowl along with a tablespoon of neutral oil and mix to combine well.If you are not using skin-on chicken, skip this next step.Once combined, flip each piece of chicken skin side up. Sprinkle a pinch of baking powder (1/4 tsp total) onto the skin of each chicken thigh and rub it in well until you don’t see any more baking powder on the chicken skin. Baking powder – don’t skip this step! It’s a foolproof way to get ultra crispy skin. Ensure that the baking powder is rubbed only onto the skin until it’s no longer visible for best results.
Place skin side down in the air fryer tray and air fry at 400F for 12 minutes.
After 12 minutes, flip each chicken thigh so the skin is facing up. Pat the skin dry with a paper towel to remove any excess moisture – this will further help the skin crisp up in the air fryer. Don’t worry if the skin looks a little raw still – this second air fry will allow them to crisp up beautifully!
Air fry again for 12-14 minutes until the chicken is cooked through and skin looks golden crispy. Let cool for a few minutes before digging in!