In a large cooking pot melt down butter on medium making sure it doesn't boil.

On a cookie sheet cover with wax paper. Or you can lightly grease a brownie pan with butter or cooking spray so it doesn't stick.

Add marshmallows to the butter making sure the mellows are melted down until creamy. (small marshmallow clumps are okay)

Turn the heat off. Add your cereal, fold into marshmellow cream until eavenly mixed.

once it has slightly cooled down add the chocolate chunks and nuts(optional), Mix in evenly

spread the mixture evenly on the cookie sheet to about quarter to a half inch thick.

Cover and let it cool for about a half hour to 45 min.

Cut into desired shapes or into traditional squares, enjoy! note: if you let 'em cool in the fridge don't let it sit longer than 10 min it may become harder to cut and eat.

For fun try adding chocolate chunks on the wax paper to have melted chocolate candy bottoms or add on top! :)