Sorry but it seems that this shirt got printed with some senseless errors. First off, it is a s'mores requirement for at least the marshmallow to be toasted. Also it is assembled wrong. The marshmallow goes on top of the chocolate. No one builds a cheeseburger by sticking the cheese under the burger. And ok, I admit, adding the psi part is cute...but i am am totally lost. Are we supposed to squeeze the marshmallow first at 1.6 psi, then the marshmallow and chocolate together at 3.2 psi, then the whole thing at 5 psi? Are those measurements for using an untoasted s'more as shown? I realize that Mr. Colbow originally used inches for this so I cant fault him.