Make box brownies. Let cool COMPLETELY.
Spread jar of marshmallow fluff on top of brownies.
Melt 1 c. milk chocolate chips and 1 c. butterscotch (or peanut butter) chips on stovetop. Add in 1 c. Rice Krispies. Mix well. Spread on top of brownies.
Prepare to be showered with compliments.![]()