I had to do some luster dusting of some red fondant pearls last week, right at the same time a question came up on The Cake Board about the best way to pearlize colored pearls so that the color didn't disappear.
I've used regular pearl dust on colored pearls before, and it basically changes the color so much they don't look colored anymore.
So I did three versions of the pearls. First, here they are, undusted:
Her are some with regular pearl dust on them:
Not really red anymore...So I added some red Crystal Color dust to it:
More red, but kind of speckly. that would work in a pinch, but the best potion was to use a colored pearl dust. This is the Crystallized Pearl from Crystal Colors in red:
That resulted in the best coverage and color, without leaving a speckled look to the pearls.
There are a lot of colored pearl dusts, but the Crystal Colors are FDA approved for food use, so people can eat them. In the case of fondant pearls that's helpful because the pearls are often attached to the sides of the cake tier and are served with the cake.
Kara Buntin owns A Cake To Remember LLC in Richmond VA, and cake supplies online at www.acaketoremember.com and www.acaketoremember.etsy.com