I prefer to use good bittersweet chocolate, deep, dark muscovado sugar, cinnamon sticks and chile powder for a little kick, and cocoa powder for extra chocolatey richness. (bojongourmet.com)
And I have one little tip for those of you who like things extra extra chocolatey. (sweetannas.com)
and I love using Hershey's Special Dark, everything is just extra chocolatey, mmmm (dessertfortwo.com)