Whisk hot mixture until chocolate chips are completely melted, then mix a bit more until you get a nice dark chocolate color. (myyellowfarmhouse.com)
I used red kidney beans instead of black beans (once again, because I was out) and the cookies were still a beautiful dark chocolate color. (oatmealwithafork.com)
We moved without painting our kitchen though (deep red above chair rail and dark chocolate color under chair rail). (goodbyehousehellohome.com)