Start by preheating your oven to 350°F (175°C). This ensures your cookies bake evenly and achieve that perfect texture.
In a large mixing bowl, combine the softened butter, granulated sugar, and brown sugar. Use a hand mixer or stand mixer to cream them together until the mixture is light and fluffy.
Beat in the egg and vanilla extract, mixing until well combined. This adds richness and flavor to your cookies.
In a separate bowl, whisk together the all-purpose flour, graham cracker crumbs, salt, and baking soda. This will ensure that your dry ingredients are evenly distributed.
Gradually add the dry mixture to the wet mixture, mixing until just combined. Be careful not to overmix, as this can affect the texture of your cookies.
Gently fold in the semi-sweet chocolate chips, chopped Hershey bars, and mini marshmallows. The chocolate and marshmallows will melt and create that signature s'mores flavor.
Using a cookie scoop or tablespoon, drop dough onto a prepared baking sheet lined with parchment paper. Leave enough space between each cookie to allow for spreading. Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden.
Remove the cookies from the oven and let them cool on the baking sheet for a few minutes before transferring them to a wire rack. Enjoy your freshly baked Chewy Smores Cookies warm, or store them in an airtight container for later!
