What's the best way to make black royal icing?

I thought I read here recently that someone used cocoa powder to make it brown first and then it was easier to color it black, but I can't find that.

Any help and thoughts would be apprecited.

Thank you.

I only use Toba's recipe but. . . I use dark cocoa and that almost makes it black - just have to add a little black color. And I've thickened it enough to make tassles on graduation caps.
I think someone mentioned that black changes the consistency of royal icing. Hopefully one of the pros will respond.

My best method is to make whatever recipe you use, keep it a bit thick, add the super black gel and then cover tightly and let it sit for at least a day or two. The color deepens over time - any time I make it and want to use it immediately, it always comes out dark gray (if I'm lucky) so that's when I started doing it in advance. HTH

As the above mentioned. I started with cocoa (and it taste better, chocolate!) then I add black, even after a few hours you will have nice black. When I add cocoa, the RI will change the consistency for stiff, so I do add a few drops of water.

I start with red and blue gel colors in a very stiff peak RI and get it to a murky color then add black. Then I let down to the desired consistency with drops of water.

If you buy Americolor super black - your RI will get black in no time! It's amazing!!

I second Americolor super black. You don't have to use an excessive amount to get solid black.