After infusing butter or oil in the Mighty Fast Herbal Infuser, set aside above amount to cool.
In a large pan over medium heat, warm Mighty Fast butter or oil. Add in marshmallows and mix carefully until all of the marshmallows are melted and combined with the butter or oil.
Turn off heat and continue to mix as cereal is gently poured into marshmallow mixture. Working quickly making sure all is combined, place cereal mixture into a greased baking dish such as a glass pyrex 13×9 or 8×8 for thicker treats.
Gently press mixture down before allowing to cool for at least 1/2 hour before eating.