Add the butter & marshmallows in a bowl and melt them together. This can be done in the microwave or on the stove top.
add in Rice Krispies and mix thoroughly
Stir and add in bag of White Chocolate Chips. Save ¼ cup of chips to side for later.
Spread the mixture into a greased pan with a greased spatula.
Allow mixture to cool (about 30 minutes), cut into squares and enjoy!