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