This single-serve rice krispie treat you can make in the microwave is insanely easy to throw together and just as good as the ones you remember from childhood.
Enjoy warm out of the mug or scoop mixture out onto a piece of parchment paper. Shape cereal into a bar by folding up the edges of the paper or using two knives to squish the mixture into shape. Allow to set and enjoy.
*If using large marshmallows, use a slightly heaping 1/3 cup of marshmallows.