For the cookies: Preheat oven to 350 degrees F.
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 in the vanilla. On a low speed beat in the flour mixture a little at a time. Gently mix in chocolate chips.
On an ungreased cookie sheet, drop teaspoons of the batter about 2 inches apart. Bake until just cracked on top, about 8 to10 minutes, rotating the pan halfway through the cooking time. Cool completely.
For the glaze: In a small bowl mix together the sugar; mint extract and water until smooth. Transfer mixture to a medium resealable plastic bag and snip off the corner. Drizzle glaze over cooled cookies. Let cookies stand until set, about 10 minutes.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.