Cut the baby back ribs into smaller even sized portions and place them into a shallow baking dish meat side up. Cover the ribs with the bourbon, reserving about 1/4 cup for the sauce, and then add the apple juice. Rub the meat side with the salt, pepper, red pepper flakes, grill seasoning, and the garlic. Place the ribs into the oven for 3 to 3 1/2 hours.
Preheat the grill.
Remove the ribs from the oven and hold for grilling. Mix 1/4 cup of the bourbon with the BBQ sauce and then coat the ribs with the mixture. Place the ribs on the grill and cook for about 15 minutes. Remove from the grill and arrange on a platter. Serve with grilled corn alongside, if desired.