01 -
Line a 9 x 13 inch baking dish with parchment paper and lightly spray with non-stick cooking spray. Set aside.
02 -
Over low to medium heat, melt the butter in a large saucepan. Stir in vanilla extract and all but 1.5 cups of the mini marshmallows until completely smooth and melted.
03 -
Add crispy rice cereal, 5 cups Golden Grahams cereal, and 1 cup of reserved mini marshmallows to the melted mixture. Stir gently to coat the cereals and marshmallows evenly.
04 -
Fold in 0.25 cup mini semi-sweet chocolate chips, mixing just until evenly distributed.
05 -
Spread the mixture evenly into the prepared baking dish. Sprinkle the remaining 0.5 cup Golden Grahams cereal and leftover mini marshmallows over the top. Press broken milk chocolate pieces evenly across the surface.
06 -
Allow to cool at room temperature for 15 to 20 minutes until set. Slice into 16 squares and serve.