Roast, Roast, Roast Your Marshmallow
sung to the tune of "Row Row Your Boat":

Roast, roast, roast your marshmallow,
over the open fire
lightly toast ’em,
scorch ’em, burn ’em,
then we’ll have s’more.

S'mores - from Little Happy Campers, Greatest Hits Volume 6
3-Part Round, Words and music by Melinda Caroll

S'mores, S'mores, More S'mores
First you roast a marshmallow, crispy and hot,
Take a graham cracker and some dark choc-o-late,
Put ‘em all together and what have you got?
S'mores, Glorious S'mores,
We need some more!