Soak each cedar grilling plank in water, apple juice, or beer for 1 – 2 hours. Make sure they remain submerged by placing a weight on them.
Mix all dry rub ingredients in a bowl. Brush chicken with olive oil and apply spice rub on the chicken breasts. Refrigerate until ready for the grill.
Prepare glaze by mixing all ingredients and keep half of this mixture in the fridge for later use.
Preheat your gas or charcoal grill to medium heat, 325 – 375°F
Remove planks from water and place on grill on direct heat. Cover lid and heat plank until it starts to smoke (about 8 – 10 minutes). Keep a bottle of water handy in case your plank catches fire.
Open lid, rub planks with oil and place seasoned chicken on planks. Close the lid and smoke on indirect heat for 5 – 10 minutes.
Brush the glaze on the chicken and cook for ten more minutes.
Apply glaze mix once more and smoke for 5 – 10 more minutes or until chicken reaches an internal temperature of 165 – 175°F.
Take plank and chicken off the heat. Rinse planks with water for future use.
Allow chicken to rest for 5-10minutes before slicing, and serving.
Serve with any side dish you choose: with rice or steamed vegetables, in salads, pasta sauce, etc. Enjoy with friends!