01 - Preheat oven to 350°F and line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, and salt in a medium bowl. Set aside.
03 - Beat softened butter, granulated sugar, and brown sugar in a large bowl until light and creamy, approximately 2 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in mint extract, vanilla extract, and green food coloring until evenly combined.
05 - Gradually add dry ingredients to wet mixture, mixing just until incorporated.
06 - Fold in semi-sweet chocolate chips and mint chocolate chips until evenly distributed.
07 - Scoop heaping tablespoons of dough onto prepared baking sheets, spacing cookies approximately 2 inches apart.
08 - Bake for 9 to 11 minutes until edges are set but centers remain soft.
09 - Allow cookies to cool on baking sheet for 5 minutes, then transfer to wire rack to cool completely.