Preheat oven to 350 degrees F. Spray a cookie sheet with cooking spray. In the bowl of a stand mixer, cream together the butter and sugar until creamy. Beat in the vanilla and egg until well combined. In a medium bowl, combine the graham cracker crumbs, flour, baking soda, and salt; gradually add to the butter mixture until just combined. Stir in the chocolate chips. Scoop dough onto cookie sheet and bake for 7 minutes. Cookies will look slightly underdone, but will firm up as they cool.