Preheat the oven to 325°F (163°C). Prepare a 9-inch springform pan by lightly greasing the sides or lining the bottom with parchment.
In a bowl, mix graham cracker crumbs, granulated sugar, and melted unsalted butter until the crumbs are evenly moistened.
Press the mixture firmly into the bottom of the springform pan to form an even crust. Bake for 10 minutes, then remove and let cool completely.
In a mixing bowl, beat cream cheese until smooth and creamy. Gradually add powdered sugar and vanilla extract, beating until fully combined and smooth.
In another chilled bowl, whip heavy cream until stiff peaks form. Be careful not to overwhip.
Gently fold the whipped cream into the cream cheese mixture until light and uniform.
Fold in chopped Butterfinger bars, distributing the candy evenly through the filling.
Pour the mixture over the cooled crust and spread evenly. Drizzle caramel sauce over the top and swirl slightly if desired.
Refrigerate for at least 4 hours or until fully set. Remove the springform sides, slice, and serve chilled.
Notes
Store cheesecake covered in the refrigerator for up to 4 days. For freezing, wrap in plastic wrap and aluminum foil and freeze for up to 2 months.