01 -
Preheat oven to 350°F (175°C) and line two baking sheets with parchment paper.
02 -
Grate zucchini and set aside, keeping the natural moisture.
03 -
In a large mixing bowl, beat together the egg, granulated sugar, brown sugar, and vanilla extract until smooth.
04 -
In another bowl, whisk together all-purpose flour, unsweetened cocoa powder, baking powder, baking soda, and salt.
05 -
Gradually fold the dry ingredients into the wet mixture until mostly combined.
06 -
Gently fold in grated zucchini and semi-sweet chocolate chips just until incorporated.
07 -
Drop rounded tablespoons of dough onto prepared baking sheets, spacing each about 2 inches apart.
08 -
Bake for 10 to 12 minutes, until edges are set and centers remain soft.
09 -
Let cookies cool slightly on baking sheets before transferring to a wire rack to finish cooling.