I'm not sure who invented the s'more dessert or when. What I do know is it's an abbreviation for "some more".
It's our family's tradition to light a camp fire right after using our barbecue. Since my childhood friend Alexia and her family are visiting from Paris, I wanted to give them the very American experience of molten marshmallows tucked with a piece of chocolate in between graham crackers.
We had leftover marshmallows, so I made a variation, an "indoor" s'more, combining a vanilla cake, marshmallow, peanut butter, raspberry liqueur, chocolate and a few dried fruits. My guests did, indeed, ask for some more!