Crush graham crackers until fine, then whisk with flour, baking soda, baking powder, salt and cinnamon and set aside.
Cream softened butter, granulated sugar, and brown sugar until light and fluffy. Add the egg and vanilla and mix until combined. Add the dry ingredients into the butter mixture to form and mix until a soft dough forms.
Using a cookie scoop (I'm using a 1-tablespoon scoop), drop mounds of dough onto a baking sheet and chill for an hour in the fridge (or up to 48 hours).
Preheat oven to 350°F. Line a baking sheet with parchment.
Place chilled dough balls evenly spaced onto the prepared baking sheet. Bake until cookies are lightly browned around the edges but still soft in the middle, about 8 to 10 minutes for 2-3 tablespoon dough balls or 7-8 minutes for 1 tablespoon dough balls. Let the cookies cool on the baking sheet for 5 minutes before transferring to a cooling rack.
Enjoy as is or spread Nutella on the flat side of the cookie and make a s'more sandwich cookie! Store in an airtight container at room temperature for up to 4-5 days.
Notes
Graham Cracker Crumbs: If using whole graham crackers, pulse in a food processor or crush in a zip-top bag with a rolling pin until finely ground.
Butter: Both salted and unsalted butter work in this recipe. If using salted, reduce the added salt slightly to balance.
Make It a Sandwich: For a fun twist, spread Nutella or your favorite hazelnut spread between two cookies. Add a toasted marshmallow or peanut butter for a s’mores-inspired treat.
Graham Flour: Some bakers may want to substitute graham flour with crushed graham crackers. There are some differences. Graham flour is made with whole wheat flour and does not have the same texture and flavor as honey and cinnamon as crushed graham crackers. Graham flour also has a coarser, grainier texture than crushed graham crackers.