01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium mixing bowl, whisk together flour, baking soda, and salt. Set aside.
03 - In a large bowl, beat the softened butter, granulated sugar, and brown sugar with an electric mixer or sturdy whisk until the mixture is light and creamy.
04 - Add eggs one at a time, blending thoroughly after each addition. Mix in vanilla extract and peppermint extract until combined.
05 - Gradually add the dry ingredients to the wet ingredients, stirring until just incorporated. Avoid overmixing.
06 - Fold in semi-sweet chocolate chips and crushed peppermint candies to evenly distribute throughout the dough.
07 - Scoop dough into tablespoon-sized balls and arrange them on the prepared baking sheets, leaving approximately 2 inches of space between each.
08 - If desired, sprinkle additional crushed peppermint candies on top of each dough ball for decoration.
09 - Bake cookies for 9 to 11 minutes, until the edges are lightly golden and centers remain soft.
10 - Allow cookies to cool on the baking sheets for 5 minutes before transferring to a cooling rack to finish cooling completely.