01 - Preheat oven to 350°F. Line two baking sheets with parchment paper and set aside.
02 - In a medium mixing bowl, whisk together all-purpose flour, baking soda, and salt. Reserve until needed.
03 - In a large bowl, beat softened unsalted butter, granulated sugar, and brown sugar with an electric mixer or sturdy whisk until light and creamy in texture.
04 - Add eggs one at a time to the creamed mixture, mixing thoroughly after each addition. Blend in vanilla extract and peppermint extract until evenly distributed.
05 - Gradually incorporate dry ingredients into the wet mixture, mixing only until just combined and no streaks remain.
06 - Fold in semi-sweet chocolate chips and crushed peppermint candies until evenly distributed through the dough.
07 - Scoop tablespoon-sized portions of dough onto prepared baking sheets, spacing each ball approximately 2 inches apart.
08 - If desired, sprinkle additional crushed peppermint over the dough balls before baking for festive presentation.
09 - Bake for 9 to 11 minutes, until the edges are lightly golden and centers remain soft.
10 - Allow cookies to cool on the baking sheet for 5 minutes, then carefully transfer to a wire rack to cool completely.