Try looking at Top Secret Recipes
-- maybe they'll have something.
For those who don't know, Moon Pies are one of the glories of the American South. Sweeter than "sweet tea" and more ubiquitous that any one style of barbecue. Kind of a cookie sandwich, but sooooooo much more. The de rigeur accompanying beverage is Dr. Pepper soda.
(My teeth hurt just typing this. :D )