Combine all the marinade ingredients in a blender and process until smooth
For a whole chicken, place chicken breast-side down, with the legs towards you. For individual pieces, skip to step #8
Using kitchen scissors or shears cut along either side of the backbone to remove it, save the backbone for stock
Break the wishbone with your knife
Turn the bird breast side up and just press down with the palm of your hand to make it lay flat.
Make a shallow incision at the joint between the drumstick and thighs
Make a shallow incision at the joint between the wings and breast
Place the chicken in a large bowl and pour on the marinade, ensure your cover the chicken completely. Marinate at least one hour and up to 24 hours.
Pile the charcoal on one side of the grill, you don’t want the chicken to be directly over the flames.
Place the chicken skin side up on the grill with the legs closest to the flames, but again, not over the flames
Cover the grill and roast the chicken for 30-45 minutes, until and an instant-read thermometer inserted into the thickest part of the thigh and the breast, reads 165F
Wrap in foil, let rest for 10-15 minutes