Treat bars of peanut shaped peanut butter coated cereal blended with marshmallows are drizzled with chocolate ganache and sprinkled with Nutter Butter Cookie pieces.
Combine the marshmallows and butter in an extra large mixing bowl.
Heat in the microwave on high heat for 1 1/2 - 2 minutes, stirring after one minute, until melted.
Pour in the Nutter Butter Cereal and stir to combine.
Spread in a non-stick tin foil lined or well buttered 9X13 inch baking pan.
Combine the chocolate and heavy whipping cream.
Heat in the microwave for 30 seconds then let sit for 3 minutes.
Remove from microwave and stir until melted and smooth.
Drizzle over Nutter Butter Cereal bars and sprinkle on the Nutter Butter Cookie pieces.
Set aside for at least an hour until the bars firm up and the chocolate sets.
Cut into 24 bars.