Combine all ingredients into a large bowl and mix well. Transfer to an airtight container.
To Make: Heat up oil in a large skillet. Combine 1 cup buttermilk and 1 egg in a small bow. Pour coating mix into a plastic bag. Dip fish into the egg mixture and then place into the dry mix bag. Shake until well coated and add to your hot skillet. Fry until golden brown on both sides.
