For the marinade, peel strips of lemon zest and put in a large non-metallic bowl or large re-sealable sandwich bag with the juice of the lemon and remaining marinade ingredients. Add the chicken, mix well to coat, cover (if in a bowl) and leave to marinade ideally overnight in the fridge.
Once marinated, thread the chicken onto skewers, leaving a small gap between pieces to ensure even cooking.
Prepare the barbeque with the baffle in the down position set at a hot temperature for grilling (about 250-350°C).
Cook the skewers for 6-8 minutes, turning occasionally, until you have a golden crust. Transfer to a plate while you heat through the pitta or flatbread, to give it a slightly charred edge.
Scatter parsley or coriander over the chicken and serve with the pitta, hummus, some pickled chillies, olives, radishes, a drizzle of extra virgin olive oil and lemon to squeeze over.