Spatchcocked Sweet & Savory Chicken

CHICKEN, MAPLE DIJON MARINADE (MAPLE SYRUP, DIJON MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED, SEA SALT, WHITE WINE, CITRIC ACID {ACIDULANT}, TURMERIC, SPICES], COURSE GRAIN DIJON MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED, SEA SALT, SPICES], YELLOW MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED, SEA SALT, TURMERIC, PAPRIKA, SPICES], SEASONING BLEND [SPICES {BLACK PEPPER, CORIANDER, OREGANO}, SEA SALT {SALT, POTASSIUM CHLORIDE}, CANE SUGAR, DEHYDRATED GARLIC, DEHYDRATED ONION, DEHYDRATED BELL PEPPERS, XANTHAN GUM], GARLIC, PAPRIKA, MOLASSES POWDER [CANE SUGAR, CANE MOLASSES], ROSEMARY, DIJON MUSTARD POWDER [DIJON MUSTARD {MUSTARD SEED, DISTILLED VINEGAR, SALT, WHITE WINE, CITRIC ACID (ACIDULANT), TARTARIC ACID, SPICES}, MALTODEXTRIN, MODIFIED CORNSTARCH], CITRIC ACID [ACIDULANT]), WATER, SEASONING (SALT, DEXTROSE, MODIFIED TAPIOCA STARCH, SPICES, GARLIC POWDER, ONION POWDER), VINEGAR POWDER, ROSEMARY EXTRACT