01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - Whisk together all-purpose flour, cocoa powder, baking soda, and salt in a medium bowl.
03 - In a large bowl, beat the softened butter with granulated sugar and brown sugar until light and fluffy.
04 - Incorporate the egg and vanilla extract into the creamed mixture until thoroughly combined.
05 - Gradually mix the dry ingredients into the wet ingredients until just combined without overmixing.
06 - Gently fold in the semisweet chocolate chips.
07 - Drop dough by small, irregular clumps spaced approximately 2 inches apart onto the prepared baking sheet.
08 - Bake for 18 to 20 minutes until the edges are slightly crisp and set.
09 - Allow the baked cookie crumbles to cool completely, then break into pieces. Enjoy alone or as a topping.