Combine the Spice Mix in a bowl.

Place 1 tbsp of Spice Mix in a ziplock bag with the chicken and buttermilk. Set aside to marinate for at least 2 hours, preferably 3 but ideally overnight.

Preheat oven to 400F/200C.

Place the butter and oil on a large rimmed baking tray. Place in the oven for a few minutes until the butter is just melted. Remove and tip the tray to spread the oil and butter all over.

Combine the remaining Spice Mix, flour, panko and cornmeal in a bowl and mix. Place half in a large ziplock bag.

Drain the chicken of excess marinade using a colander.

Transfer half the chicken into the ziplock bag, seal in air so it is puffed like a balloon, then shake to coat the chicken in the seasoning. Press through the bag so the coating is firmly stuck onto the chicken. Place the chicken onto the baking tray.

Place the remaining coating into the ziplock bag and repeat with remaining chicken.

Spray the top with oil and place in the oven. Bake for 12 minutes, then turn, spray and bake for a further 8 to 10 minutes or until golden. Don't bake more than 25 minutes, otherwise the chicken will dry out!

Serve with your favourite dipping sauce. I used Honey Mustard Sauce (Note 7).