S'mores, crumb crusts, a quick ice cream sandwich. All of these treats are possible thanks to a humble childhood snack: the graham cracker. S'mores probably weren't what Sylvester Graham had in mind back in 1829 when he created a "honey health biscuit" made from whole grains. Most of today's graham crackers are made from refined wheat flour. If you are on a gluten-free diet, this is a problem. However, gluten-free grahams are easy to make at home. And even if you aren't gluten-free, making…