I am a huge fan of Hershey's Special Dark Cocoa powder which I used in recipe. Also I used a cookie scoop in medium size for scooping ( see picture ) The cookies were cooked 10 minutes exactly. Having the same size insures an evenly baked batch. You may roll cookies into balls with damp hands. Flatten top just a touch before cooking. Watching first batch with a close eye for the cookie to spread just a bit, remain soft looking on top but have firm edges will yield proper results:-)