Make the Crust: Place cookies in a food processor and process until finely ground. Alternately use store bought graham cracker crumbs :-)
Add ⅓cup brown sugar and butter, pulse 2~3 times or just until combined.
Press the crumb mixture onto the bottom and up the sides of a 9" pie plate coated with cooking spray.
Bake for 10 minutes. Cool completely on a wire rack.
Make the Filling: Place ¾cup of brown sugar, cream cheese, peanut butter and vanilla in a mixing bowl; beat with a mixer until smooth.
Fold in the whipped topping.
Arrange the bananas on the bottom of the pie crust. Spread peanut butter mixture over banana. Drizzle with chocolate syrup. Cover and freeze for 8 hours; let stand at room temperature for 15 minutes before slicing and serving!!!