01 -
Preheat oven to 175°C. Line a baking sheet with parchment paper.
02 -
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
03 -
Beat in the egg and vanilla extract until fully incorporated.
04 -
In a separate bowl, whisk flour, baking soda, salt, and graham cracker crumbs until evenly blended.
05 -
Gradually add the dry mixture to the wet ingredients, mixing until just combined.
06 -
Fold in the chocolate chips and mini marshmallows until evenly distributed.
07 -
Drop rounded tablespoons of dough onto the prepared baking sheet, spacing them approximately 5 centimetres apart.
08 -
Bake for 8–10 minutes until the edges are lightly golden and marshmallows are gooey.
09 -
Allow cookies to cool on the baking sheet for several minutes, then transfer to a wire rack to cool completely.