Mix all the dry ingredients together and set aside. Pat the pineapple rings dry with a paper towel. Sprinkle half the dry mixture in a shallow pan. Arrange the pineapple rings in a single layer on the sugary mixture and top with the remaining mixture. Let sit in the fridge for at least an hour. Meantime, heat the BBQ/grill to medium-high and spray with non-stick cooking spray. Place the marinated pineapple rings on the grill and cook both sides until the sugar caramelizes and the fruit is heated through. Yield: 8 servings