Mix together the whole wheat flour, all-purpose flour, salt, baking soda, and cinnamon.
In a separate bowl, combine the butter, brown sugar, and honey and mix until smooth. Add the dry ingredients in two additions. The finished dough will look shaggy.
Turn the dough onto a clean countertop that has been lightly dusted with flour. Knead the dough a couple of times to gather it into a ball. Flatten the dough into a rectangle about 1/2" thick. Wrap the dough and chill for about 45 minutes.
Preheat the oven to 350°F and lightly dust the countertop with flour. Remove the dough from the fridge and dust with flour, top and bottom. Roll to 1/8" thick.
Use a ruler and a pastry wheel and cut the dough into 1 1/2" x 3" rectangles, first by cutting the dough into 1 1/2" strips, then across into horizontal strips spaced 3" apart. Gather and re-roll any dough scraps. PRO TIP: Before cutting the strips, mark each row and column by cutting notches into the dough top and bottom.
Dock the graham crackers with a fork.
Transfer the grahams to two lined baking sheets in pairs. Leave space between each pair. Bake for 15 to 20 minutes, until they look dry and very lightly browned on the edges.
Cool in the sheet pan for five minutes, then transfer to a cooling rack to chill fully.
Disclaimer: Nutrition information is provided for courtesy purposes only, and is an estimate not verified by medical or nutrition experts. Read the full nutrition disclaimer.