01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk flour, baking soda, and salt in medium bowl. Set aside.
03 - Beat softened butter, granulated sugar, and brown sugar until light and fluffy, about 2-3 minutes.
04 - Beat in eggs one at a time. Add mint extract, vanilla extract, and green food coloring, mixing until evenly colored.
05 - Gradually add dry ingredients to wet mixture, mixing until just combined.
06 - Fold in chocolate chips and chopped dark chocolate until evenly distributed.
07 - Scoop tablespoon-sized dough balls onto prepared sheets, spacing 2 inches apart.
08 - Bake for 9-11 minutes until edges are set and centers appear slightly underbaked.
09 - Cool on baking sheet for 5 minutes, then transfer to wire rack to cool completely.