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 butterscotch chips. Save ¼ cup of chips to side for later.
Spread the mixture into a greased pan with a greased spatula.
sprinkle ¼ cup of butterscotch chips on top and gently press them into the batter with your spatula
Allow mixture to cool (about 30 minutes), cut into squares and enjoy!