Cocoa just doesn't get much darker than this.

This Black Cocoa from King Arthur Flour is worth the splurge. We used it quite a bit while testing all the various desserts in our forthcoming cookbook, and we are kind of addicted to it.

Be forewarned, this cocoa powder is insanely rich and is not meant to be an equal parts substitute for your typical cocoa. Instead, substitute 1 or 2 tablespoons for regular cocoa powder in your recipes and scale it up and down as necessary.