I usually use chicken breast for this BBQ. However all parts of chicken can be used. Sevide chicken into equal pieces (smaller better), cut the onion into rings. Put the chicken into a pot, season, add onion rings, lemon juice and mix. Leave for 4-5 hours.
Prepare your BBQ by heating the coal to needed temperature (normally coals turn read).
Put the chicken pieces through skewers and cook. Important: keep salted water near you to use to turn down any sparks of fire.