Step 1: Prepare the Pie Crust

1. In a medium bowl, mix together the graham cracker crumbs, melted butter, and granulated sugar until well combined.
2. Press the mixture firmly into the bottom and up the sides of a 9-inch pie pan to form the crust.
3. Place the crust in the refrigerator while you prepare the filling.

Step 2: Make the Filling

1. In a large mixing bowl, beat the softened cream cheese with an electric mixer until smooth and creamy.
2. Gradually add the powdered sugar and peanut butter, continuing to beat until well combined and smooth.
3. Gently fold in the whipped topping until fully incorporated.
4. Fold in the crushed Butterfinger bars, reserving a small amount for garnish.

Step 3: Assemble the Pie

1. Pour the filling into the chilled graham cracker crust, spreading it evenly.
2. Use a spatula to smooth the top of the filling.

Step 4: Chill

Cover the pie with plastic wrap and refrigerate for at least 4 hours, or until set.

Step 5: Serve

1. Before serving, top the pie with additional whipped topping and sprinkle with reserved crushed Butterfinger bars. Drizzle with chocolate syrup if desired.
2. Slice the pie into wedges and serve chilled.