Preheat your oven to 350°F (175°C).
Cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Add the egg, vanilla extract, peppermint extract, and milk to the creamed mixture and mix well.
In another bowl, whisk together the flour, cocoa powder, baking soda, and salt. Gradually add to the wet ingredients and mix until just combined.
Fold in the Nestle Tollhouse Dark Chocolate Mint Delightfuls, melted semi-sweet chocolate chips, and crushed candy canes.
Drop rounded balls of dough onto a baking sheet lined with parchment paper and bake for 10-12 minutes.
Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
