These Chocolate Brownie Cookies are an easy one bowl cookie recipe that can be whipped and enjoyed in less than 30 minutes!
Preheat oven to 350° F and position two racks, one in the upper third of the oven and one in the lower third of the oven*.
Whisk together sugar, cocoa powder, and salt in a large bowl. In the same bowl, add egg whites and eggs. Whisk until combined.
Fold in chocolate and cacao nibs (if using).
Drop by the tablespoon (actually use a tablespoon measuring device to get consistent sizes), spacing 2" apart on parchment lined baking trays. You'll most likely need to large trays.
Bake for 14-16 minutes, rotating once at the halfway mark.
Let cool on pan. The cookies will continue to firm up.
* ensure the pans are at room temperature or colder. If warm, the batter will thin out and cookies will burn.