First start by making the marinade. Mix all the ingredients well. Add the chicken cubes and stir so all chicken is covered in some of the marinade. Leave to marinade for at least 30 minutes.
Make a skewer by placing the chicken cubes on wooden skewers and grill them in a frying pan or on the barbecue untill cooked through and golden.
In the meantime make the tzatziki by mixing the garlic and the cucumber through the coconut yogurt. Add salt, pepper and fresh dill to taste.
Serve the souvlaki with the tzatziki and a big Greek salad