1. Place the chicken in a large bowl.
2. Fire up your Ooni pizza oven.
3. With a drizzle of olive oil, preheat your cast iron pan in the oven for 1 minute.
4. Thread the chicken pieces onto a skewer (roughly 4-5 pieces of chicken per skewer), and lay each skewer on the warmed pan.
5. Remove from the oven and serve with your choice of veg and sauce.