With an electric mixer, beat together cream cheese, powdered sugar, and peanut butter until smooth. Stir in Cool Whip until well combined.

Cut Snickers bars lengthwise once or twice, chop into small pieces and set aside 2 to 3 tablespoons of candy bar pieces.

Add chopped candy to peanut butter mixture; stir until well mixed. Spoon mixture into pie crust.

Sprinkle top with remaining chopped candy bars.

Refrigerate for at least 3 hours before serving.