1/2cup unsweetened cocoa powderFor more more intense chocolate flavor, add 3 more tablespoons unsweetened cocoa powder, otherwise they will be more like milk chocolate flavor as is. (can also add 1-2 teaspoons espresso powder.)
Scoop cookie dough onto prepared baking pan using a tablespoon (small scoop) or 1 1/2 tablespoon (medium scoop) depending on size you wish to have. Leave room for the cookies to spread slightly. Bake for approximately 10-12 minutes. Gooier for 8 minutes. Cookies should be starting to firm up but still soft in the middle. Bake longer if you want more done cookies and if larger as well.
Let cookies set on cookie tray for a couple of minutes before removing them to cool completely on a wire rack.