01 - Preheat the oven to 350°F. 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 bowl, use an electric mixer or whisk to beat the softened butter, granulated sugar, and brown sugar until the mixture is light and creamy.
04 - Add eggs one at a time, beating thoroughly after each addition. Mix in the vanilla extract and peppermint extract until fully combined.
05 - Gradually add the whisked dry ingredients to the butter mixture, mixing on low speed or by hand until just incorporated.
06 - Fold in the semi-sweet chocolate chips and crushed peppermint candies until evenly distributed throughout the dough.
07 - Scoop tablespoon-sized portions of dough and place them onto the prepared baking sheets, spacing about 2 inches apart.
08 - Sprinkle additional crushed peppermint candies on top of dough balls for decoration, if desired.
09 - Bake in the preheated oven 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 before transferring to a wire rack to cool completely.