Microwave 6 T. butter and 4 cups marshmallows just a minute and stir until melted. Stir in cereal and press into pan.
Pour on the caramel.
Sprinkle on the additional 2 cups marshmallows and pop in freezer for 15 minutes.
Use the remaining krispy ingredients and repeat directions.
Press this layer on top of the marshmallows and caramel layer and return to the freezer for 15 minutes.
Switch to the fridge and let set up for a few hours.
Cut into nice big squares!