1.  Line an 8″ square baking pan with parchment paper.  In microwave, melt half the chocolate and 1 Tb of butter, about 1 minute.  Stir together until smooth and add 1 C of peanut butter.  Stir until smooth, then add 2 C of rice cereal.  Spread mixture evenly over the pan and refrigerate until set, about 15 minutes.

2.  Rinse out bowl and melt 2 sticks of butter in microwave, about 1  minute.  Add remaining peanut butter and powdered sugar and stir until smooth.  Spread half of this mixture over the chilled chocolate layer.  Sprinkle on remaining 1 C of cereal and press into peanut butter layer.

3.  In a small bowl, microwave remaining chocolate chips for 1 minute.  Stir melted chocolate into the remaining peanut butter mixture until smooth.  Spread evenly over the top of the bars.  Refrigerate until completely set.