Grease a 8x8 baking pan with butter

In a microwaveable bowl, heat your marshmallow and butter in the microwave for 1 minute or until marshmallows become puffy

Mix your peanut butter in your marshmallows

Now add your 4 cups of rice cereal and mix well with a spatula

Scoop your Rice Krispies into your greased baking pan

Press your Rice Krispies into your pan with a plastic bag

Place in the freezer for 10 minutes to cool quickly

Now melt your peanut butter chips and chocolate chips in the microwave in 2 separate microwaveable dishes for 2-3 minutes on 50% power, stirring every 30 seconds until melted

Pour your melted peanut butter and melted chocolate into two separate zip lock bags

Cut a small piece off the corner of each ziplock bag

Now sprinkle your Reese's onto the top of your Rice Krispies

Then begin drizzling the chocolate and peanut butter on top

Once your chocolate and peanut butter have hardened you can slice it

ENJOY!