Gather your supplies: 1 large marshmallow, 2 pieces of Hershey's chocolate bar, 1 Oreo (regular or double stuffed)
Open your oreo
Face the oreo with the cream side up and place the 2 pieces of chocolate on top
Then place the marshmallow, sideways
Finally, place the second Oreo cookie on top of it all
Set the s'moreo on a microwaveable plate
Place it in the microwave
For 10-15 seconds. WARNING: The marshmallow will probably blow up really big while in the microwave but that's ok. When the microwave timer stops, it'll go back to its original size.
It'll get sloppy a little (ok maybe a lot) but the result is a gooey, chocolatey, combination of a s'more and and an Oreo! Enjoy!