Yes, it is easier to get black starting from chocoalte, whether you are coloring frosting or fondant or confectionery coating.
Be sure that you are using an oil-based or powdered coloring agent. Water-based colors may ruin the candy.
The easiest way of all to get black is just to buy black Candy Melts, if you have access to a store that sells Wilton products. This is the only time of the year they are available, so you are in luck if you can get them.
They go on sale often at the craft stores or coupons can be used at those stores. But even full price they are reasonably priced.
You can color it with food coloring to make any color imaginable, too.
I've got a couple of melters that you plug in. They have little removable pots that sit in the heating area, and can be removed for pouring the melted chocolate. I found the best price for those on eBay. I've also got a plug-in unit that has 10 little metal containers on it (each holds about 3 or 4 wafers) that I use for my custom colors. I'll melt them in it, add food coloring, and use a paint brush for small details. When finished, I unplug the unit, let it cool, and put the little caps on the containers to save until next time. Handy little gadget!
I also will put the melts into a microwave safe glass bowl, measuring cup, etc., and melt them at 60% power for 30-seconds at a time. Stir between nuking, and keep doing this until they are nice and melted. (But don't over do it!) I usually put 1/4 to 1/2 bag at a time. (Bags are usually 12 oz. to a lb. each)
Get Inspiration and Great Deals
Yes, I want to receive new decorating ideas and exclusive offers from Wilton. You can withdraw your consent at any time. Learn more