Method
Combine the olive oil, lemon juice, garlic, oregano, salt, pepper and lemon zest.
Add the chicken and coat thoroughly. Refrigerate for 30 minutes to 4 hours.
For the tzatziki, grate the cucumber and squeeze out as much water as possible.
Mix cucumber with yoghurt, olive oil, lemon, garlic and herbs. Season and refrigerate until needed.
Thread chicken onto small skewers, or cook as individual bites.
Air fry at 190°C for 10–12 minutes, turning halfway, until cooked through.
Finish at 220–230°C for 2–3 minutes for some charred edges.
Serve hot with cold tzatziki and a squeeze of lemon.