Though the exact origin of s'mores [1] is unknown, the Girl Scouts [2] of the USA is credited with the first publication of the recipe! In 1927, Troop leader Loretta Scott Crew wrote a recipe for "Some Mores," and published it in Tramping and Trailing With the Girl Scouts [3], an official Girl Scouts publication. The original recipe calls for the same classic ingredients: graham crackers, Hershey's chocolate, and marshmallows, and the procedure is the same: "Toast two marshmallows over the coals to a crisp gooey state and then put them inside a graham cracker and chocolate bar sandwich. The heat of the marshmallow between the halves of chocolate bar will melt the chocolate a bit. Though it tastes like 'some more' one is really enough." Take a look at vintage photos of Girl Scouts roasting up some s'mores and see the original recipe down below.