01 - Preheat the oven to 350°F and line two baking sheets with parchment paper.
02 - In a medium mixing bowl, whisk together the all-purpose flour, baking soda, and salt. Set aside.
03 - In a large mixing bowl, beat the softened unsalted butter, granulated sugar, and brown sugar until light and creamy.
04 - Add the eggs one at a time, mixing thoroughly after each addition. Blend in the vanilla extract and peppermint extract.
05 - Gradually add the dry ingredients to the butter mixture, mixing just until a uniform dough forms.
06 - Fold in semi-sweet chocolate chips and crushed peppermint candies until evenly distributed.
07 - Scoop tablespoon-sized portions of dough onto the prepared baking sheets, spacing each about 2 inches apart.
08 - Sprinkle additional crushed peppermint on top of the dough balls if desired for decoration.
09 - Bake in the preheated oven for 9 to 11 minutes, until the edges are lightly golden yet centers remain soft.
10 - Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.