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 softened butter, granulated sugar, and brown sugar with an electric mixer until light and creamy.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract and peppermint extract until smooth.
05 - Gradually add dry ingredients to the wet mixture, blending on low speed until just combined. Avoid overmixing.
06 - Gently fold in semi-sweet chocolate chips and crushed peppermint candies to evenly distribute throughout the dough.
07 - Scoop the dough into tablespoon-sized balls and arrange on prepared baking sheets, spacing about 2 inches apart.
08 - If desired, sprinkle additional crushed peppermint candies on top of each dough ball for added decoration.
09 - Bake in preheated oven for 9 to 11 minutes, until edges are lightly golden and centers remain soft.
10 - Allow cookies to cool on baking sheet for 5 minutes before transferring to a cooling rack to cool completely.