“How wacky,” you say. “You don’t make graham crackers, you make things with graham crackers—like s’mores and pie crusts. Why bother?” It’s no bother, and it’s totally worth it. A homemade graham cracker is like homemade pasta. Once you bite in, you can’t believe it could taste—and make you feel—that good. This recipe bakes up a graham cracker that’s crisp and sweet, with a toasted wheatiness and tang of molasses. Sure it’s familiar—you’ve had something like it before, from a box. But this is the real thing. This Boston Globe recipe lay dormant for 42 years in my recipe box. When I dug it out and gave it a whirl recently, it was like…