I use baking powder in my recipe for the flour seasoning for an extra crispy skin. However, if you are unable to find aluminum free baking powders, you can skip it as baking powders containing aluminum has a bitter taste. I also added yoghurt to my recipe so that the acid in the buttermilk and yoghurt will make the meat super juicy and tender, especially if marinated overnight. If you're unable to find full-fat plain yoghurts, replace with 1 cup of the buttermilk. If you're unable to get buttermilk, you can substitute 1 cup buttermilk for 1 cup full cream milk with 1 tablespoon of lemon juice added to it.
Ensure the chicken is totally thawed if using frozen chicken. In a large bowl, add chicken to the seasoning and stir to mix and coat well. Let the seasoned chicken stand at room temperature for 1 hour, then refrigerate overnight (6-8 hours) covered. The longer u let the yoghurt and buttermilk do the magic on the chicken, the more tender and juicy the meat will be.