BEAT pudding mix and milk in large with whisk 2 min. Add peanut butter; mix well. Stir in COOL WHIP. Layer 1/3 of the grahams and half the pudding mixture in 13x9-inch dish, breaking grahams as necessary to fit. Repeat layers. Top with remaining grahams.
MICROWAVE chocolate and butter in microwaveable bowl on HIGH 2 min., stirring after 1 min. Stir until chocolate is completely melted and mixture is well blended. Spread over grahams.
REFRIGERATE 8 hours.
Compliements: Kraft Foods