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 apple on prepared plate. Refrigerate 15 min.
Melt chocolate as directed on package.
Add peanut butter; swirl gently with spoon.
Drizzle over apples.
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.)