Wash apples, then dry completely. (Note: In order for the caramel sauce to stick to the apples, the apples need to be well chilled before washing, drying and dipping in the caramel sauce.)
Insert wooden pop stick into stem end of each apple. Microwave caramels and water in large glass microwaveable bowl on HIGH 2 to 2-1/2 min. or until caramels are completely melted and mixture is well blended when stirred.
Cover large plate with parchment; spray with cooking spray. Dip apples, 1 at a time, into caramel sauce, turning to evenly coat each apple. Hold dipped apple over bowl to let excess caramel drip back into bowl.
Place on prepared plate. Refrigerate 15 min.
Melt white chocolate with semi-sweet chocolate as directed on package; mix well.
Pour over marshmallows in microwaveable bowl; toss to evenly coat. Microwave on HIGH 15 to 20 sec. or just until marshmallows start to puff. Swirl gently with spoon to marbleize. Immediately spread onto apples. Carefully press graham pieces into marshmallow mixture. Return to prepared plate.
Refrigerate 1 hour or until caramel is firm.
Remove apples from refrigerator 15 min. before serving. (Note: Caramel apples can be refrigerated up to 2 days before serving.)
