PLACE peanut butter in large bowl. Gradually whisk in milk until well blended. Add dry pudding mix. Beat 2 min. (Mixture will be thick.) Stir in half the COOL WHIP DIPS.
SPOON into crust; top with remaining COOL WHIP DIPS.
REFRIGERATE 3 hours or until firm. When ready to serve, microwave fudge topping as directed on package; drizzle over pie.