Preheat your oven to 350°F (175°C). This ensures that your cookies bake evenly.
Line a baking sheet with parchment paper to prevent sticking and make for easy cleanup.
In a large mixing bowl, combine the melted unsalted butter, granulated sugar, and brown sugar. Whisk them together until smooth.
Add the large egg, vanilla extract, and butter extract to the mixture. Whisk until fully incorporated.
In a separate bowl, combine the all-purpose flour, baking soda, and salt. Whisk together to evenly distribute the dry ingredients.
Gradually add the dry mixture to the wet ingredients, mixing until just combined. Be careful not to overmix!
Gently fold in the coarsely broken graham cracker squares, mini marshmallows, and 3 of the Hershey Bars chopped into small pieces.
Using a cookie scoop, drop dough onto the prepared baking sheet, leaving space for the cookies to spread.
Chop the remaining Hershey Bar and sprinkle the pieces on top of each cookie along with a few extra mini marshmallows for that perfect smores look.
Bake in the preheated oven for 10-12 minutes or until the edges are golden but the center is still soft.
Let the cookies cool on the baking sheet for about 5 minutes before transferring them to a wire rack. Enjoy your Smores Cookies warm for the ultimate experience!