01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together all-purpose flour, baking soda, and salt. Set aside.
03 - In a large bowl, beat the softened unsalted butter, granulated sugar, and brown sugar until light and creamy.
04 - Add eggs one at a time, beating well after each. Mix in vanilla extract and peppermint extract.
05 - Gradually add the dry ingredient mixture to the wet ingredients, mixing just until combined.
06 - Using a spatula, fold in the semi-sweet chocolate chips and crushed peppermint candies.
07 - Scoop tablespoon-sized balls of dough and place them on prepared baking sheets, spacing about 2 inches apart.
08 - If desired, sprinkle additional crushed peppermint over the tops of the dough balls.
09 - Bake for 9 to 11 minutes, until edges are lightly golden and centers remain soft.
10 - Remove from oven and let cookies cool on the baking sheet for 5 minutes. Transfer to a wire rack to cool completely.