Grease a Cake Pan. I also sprayed my hands with cooking spray everytime I delt with the sticky Rice Krispies, it makes a huge difference!
I heated 1pkg of peeps to 1tbsp a butter at a time and put them in my pan. So, to begin, put 1 3 oz package of peeps in a microwave safe bowl with 1 tbsp of margarine and melt in microwave for 45 seconds.
Mix with 1 1/2 cups of Rice Krispies and pour into cake pan. Press firmly down. This will only cover about 1/4 of the pan, which is fine. We are doing this in increments.
Continue the above steps until you have filled your cake pan.
Let set in fridge