Step 1

For the cookies:

Step 2

Preheat oven to 350 degrees F.

Step 3

In a medium bowl sift together flour, cocoa powder, baking soda and salt. Set aside. In a mixer beat together the butter with the sugars until fluffy, about 2 minutes. Add eggs 1 at a time, beating until smooth after each addition and scraping the sides of the bowl as necessary. Add vanilla. On a low speed beat in the flour mixture a little at a time. Gently mix in chocolate chips.

Step 4

On an ungreased cookie sheet, drop teaspoons of the batter about 2 inches apart. Bake until just cracked on top, about 8 minutes, rotating the pan halfway through the cooking time. Flatten the cookies slightly with a spatula after removing from oven. Cool completely.

Step 5

For the glaze:

Step 6

In a small bowl mix together the sugar; mint extract and milk until smooth. Transfer mixture to a medium resealable plastic bag and snip off a tiny bit of the corner. Drizzle glaze over cooled cookies. Let cookies stand until set, about 10-20 minutes.