Mix together marinade ingredients in a container big enough for your chicken.
Cut chicken into around 1in chunks, across the grain as far as possible, and toss in marinade. Leave to marinate in the fridge for at least an hour, 3-4 if you have it.
Mix together the sauce ingredients and set aside until ready.
Thread the marinated chicken on to skewers and grill on the BBQ or under a broiler/grill until lightly charred and chicken is cooked through, around 15mins although it will depend on your grill and size of chicken pieces.
Video
Notes
(see video above)NB prep time excludes marinating time, recommended at least an hour.