Line a 9x13 baking pan with parchment paper, leaving some overhang on the sides, then set aside.
Line a 9x13 baking pan with parchment paper, leaving some overhang on the sides, then set aside.
Once melted and smooth, remove from the heat and stir in the Rice Krispies.
Gently press the mixture into your prepared pan. If using your hands, grease them lightly to prevent the mixture from sticking to your hands.
In a small microwave safe bowl, combine your chocolate chips and the remaining peanut butter. Microwave for 30 seconds on high; stir well, then microwave again for 30 seconds. Stir until it becomes smooth and glossy.
Pour the melted chocolate and peanut butter mixture on top of the treats and spread evenly.
Cover the top with Butterfinger bits (or crushed Butterfingers) and place in the fridge for 30 minutes to set the topping.
Slice into squares before serving!