POUR milk into large bowl. Add dry pudding mix. Beat with wire whisk 2 min. or until well blended. Gently stir in 1-1/2 cups of the COOL WHIP DIPS. Spoon into crust.
FREEZE 6 hours or until firm.
REMOVE pie from freezer about 15 min. before serving. Let stand at room temperature to soften slightly. Meanwhile, heat hot fudge topping as directed on label; drizzle over pie. Top with remaining 1 cup COOL WHIP DIPS. Store leftovers in freezer.