Giant S’Mores Cake

Start with the cookie bars first:

* Preheat oven to 375 degrees and line a 9×13″ pan with tinfoil or parchment paper, and grease lightly.
* In the bowl of an electric mixer, cream together the butter and sugars until light and fluffy.
* Add eggs one at a time, beating well after each addition. Mix in vanilla and combine.
* In a separate bowl, whisk together flour, graham cracker crumbs, salt, and baking soda.
* Add dry ingredients to butter mixture slowly, and mix until just combined.
* Pour batter into prepared pan, and use a spatula to spread evenly
* Bake for 20-25 minutes, or until a toothpick comes out clean.
* Allow cookie bar to cool completely in the pan before removing

Then the brownies:

* Prepare brownies according to the box’s instructions. Combine mix with additional required ingredients specified in mix package (typically water, eggs and oil). Spread into a tinfoil or parchment paper-lined and lightly greased 8×8″ pan. Bake according to package instructions.
* Allow brownies to cool completely in the pan before removing

Assembly:

* Remove cookie bar from pan as 1 piece and place on a cutting board. With a large serrated knife, shave off the sides so you’re left with a roughly 8×8″ piece. (There will be a lot of extras, but I’m sure you’ll find a use for them). Carefully cut the 8×8 slab in half horizontally so you end up with 2 equally-sized thin 8×8 cookies.
* Cut out an 8×8″ piece of cardboard and place one of the cookies on top of it. Then remove the brownies from the pan in 1 piece and place on top of the bottom layer cookie.
* Fill a piping bag (or Ziploc bag) with fluff and cover the entire brownie in a relatively thick layer. The marshmallow will ooze down the sides, especially when you torch it, but that’s what happens in real s’mores too so it just adds some appropriate character.
* With a kitchen torch, torch the marshmallow uniformly so that each bite will have that toasted flavor. Be ready to blow out any bit that catches fire!
* Allow the marshmallow to set for a few minutes, and then place the final layer of cookie on top. Use a knife to make a perforated line down the middle and a straw to make the holes if you desire.