01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, and salt in a medium mixing bowl. Set aside.
03 - In a large bowl, beat the softened butter, granulated sugar, and brown sugar until light and creamy using an electric mixer or sturdy whisk.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract and peppermint extract until fully incorporated.
05 - Gradually add the dry mixture to the wet ingredients, mixing gently until just combined. Avoid over-mixing.
06 - Gently fold in the semi-sweet chocolate chips and crushed peppermint candies.
07 - Scoop tablespoon-sized portions of dough onto the prepared baking sheets, spacing each about 2 inches apart.
08 - Sprinkle extra crushed peppermint over dough balls for added decoration, if desired.
09 - Bake in the preheated oven for 9 to 11 minutes, or until the edges are lightly golden but the centers remain soft.
10 - Allow cookies to cool on the baking sheet for 5 minutes before transferring to a cooling rack to cool completely.