Ingredients
2 cups peanut butter
1 stick butter
1 package crushed graham crackers
3 cups confectioners sugar
Topping
2 c chocolate chips
1 stick butter
Directions:
Melt together 2 cups peanut butter and 1 stick of butter. Mix together with one package graham crackers crushed and 3 cups confectioners sugar. Pat and smooth into a 9X13 pan. Melt together 2 cups chocolate chips and 1 stick of butter slowly.
Pour topping over warm base. let cool and cut into bars.

Quick question...a whole package - a whole box, or a whole sleeve? These look REALLY good!
Its a whole box but you might want to scale the ingredients as per your needs...