01 -
Start by preheating your oven to 350°F. Line a baking sheet with parchment paper (my personal favorite for easy cleanup) or give it a quick spray with cooking spray if that's what you have on hand. Either way works great - we just don't want those delicious cookies sticking!
02 -
In a large bowl, whisk together 1 cup of the graham cracker crumbs (save that extra 1/4 cup for later!), flour, baking soda, and salt. This combo is what gives these cookies that authentic graham cracker flavor that makes them taste just like real s'mores. The graham cracker crumbs in the dough are absolutely game-changing!
03 -
In a separate bowl, beat together your softened butter (make sure it's truly room temperature for the best texture), brown sugar, and granulated sugar until the mixture is light, fluffy, and creamy - about 2-3 minutes with an electric mixer. Add in your egg and that splash of vanilla extract, then keep mixing until everything is well combined and looking smooth.
04 -
Now for the magic moment - slowly add your dry ingredients to the butter mixture, mixing on low speed just until everything comes together. Don't overmix here or you'll end up with tough cookies instead of soft, chewy ones! The dough should look a bit like graham cracker cookie dough (because that's exactly what it is!) and smell absolutely amazing.
05 -
Pour that reserved 1/4 cup of graham cracker crumbs onto a plate. Scoop out tablespoon-sized portions of dough and roll them between your palms to form nice little balls. Then roll each ball in the graham cracker crumbs until they're completely coated. This extra step gives the cookies that perfect graham cracker flavor inside AND out! Place them on your prepared baking sheet, leaving a couple inches between each one so they have room to spread.
06 -
Slide your cookie sheet into the preheated oven and bake for 8-10 minutes, just until the edges turn a light golden brown. The centers might still look a bit soft, but that's perfect - they'll continue cooking a bit as they cool and stay nice and chewy. Once they're done, pull them out but keep the oven on; we'll need it again shortly!
07 -
While the cookies are still warm from the oven, gently press a marshmallow half (sticky side down) onto the center of each cookie. The heat from the cookies will help the marshmallows stick, but they won't melt completely yet. Let the cookies cool completely on the baking sheet - this is important for the next step!
08 -
Here comes the fun part! Once the cookies have cooled, switch your oven to broil. Place the cookies back on the baking sheet and slide them under the broiler for just 30-60 seconds. Keep a VERY close eye on them - marshmallows can go from perfectly toasted to charred in the blink of an eye! You're looking for that golden brown toasted marshmallow look, just like you'd get roasting them over a campfire.
09 -
As soon as you take the cookies out from under the broiler, press a Hershey Kiss into the center of each warm, toasty marshmallow. The heat from the marshmallow will slightly melt the bottom of the chocolate kiss, helping it stick. Let everything cool for a few minutes so the chocolate can set up a bit before serving. Then bite into that perfect combination of graham cracker cookie, gooey toasted marshmallow, and chocolate kiss!