01 - Preheat your oven to 350°F. Line two baking sheets with parchment paper to prevent sticking.
02 - In a medium-sized bowl, thoroughly whisk together the all-purpose flour, baking soda, and salt. Set this mixture aside.
03 - In a large mixing bowl, use an electric mixer to cream together the softened unsalted butter, granulated sugar, and packed light brown sugar until the mixture is light and fluffy, typically taking 2-3 minutes.
04 - Beat in the large eggs one at a time, ensuring each is fully incorporated before adding the next. Then, mix in the pure mint extract, pure vanilla extract, and green food coloring if you are using it.
05 - Gradually add the dry ingredient mixture to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix.
06 - Gently fold in the semisweet chocolate chips and the chopped Andes mints or mint chocolate chunks, if desired, until evenly distributed.
07 - Drop rounded tablespoons of the cookie dough onto the prepared baking sheets, ensuring they are spaced approximately 2 inches apart to allow for spreading.
08 - Bake for 10-12 minutes, or until the edges of the cookies are lightly golden and set, but the centers still appear slightly soft.
09 - Allow the freshly baked cookies to cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely.