01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking soda, and salt. Set aside.
03 - In a large bowl, cream together softened butter, granulated sugar, and brown sugar until light and fluffy, about 2-3 minutes.
04 - Add eggs one at a time, mixing well after each addition. Stir in mint extract, vanilla extract, and green food coloring until evenly combined.
05 - Gradually add dry ingredients to the wet mixture, mixing just until incorporated.
06 - Fold in chocolate chips and chopped dark chocolate until evenly distributed.
07 - Using a tablespoon or cookie scoop, drop dough onto prepared baking sheets, spacing cookies about 2 inches apart.
08 - Bake for 9-11 minutes, or until edges are set and centers are still soft.
09 - Let cookies cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.