Gooey Crispy Ritz S’mores Bars

In a large microwave safe bowl combine the chocolate chips and the peanut butter. Place this in the microwave on full power for 1 minute. Stir the mixture until the chocolate is melted. If 1 minute was not long enough heat for an additional 20 seconds, or until the chocolate is melted.
Stir the Rice Krispie cereal into the chocolate mixture evenly and spread on top of the Fluff layer.
Place back in the refrigerator until the chocolate is set.
Cut into squares only when ready to serve.