The wet application is perfect for when you want an opaque finish that really transforms your cookie into silver or gold. These First Communion Chalice cookies are a great example...and the tutorial for applying is there for you as well.
Instead of using the wet application for the keys, I kept the cookies in the same color palette by adding the luster dust dry.
Adding the luster dust dry lets you see the original cookie color, but adds a sheer, metallic shimmer.
It really couldn't be easier. Let your cookies dry overnight, then use a clean and dry paintbrush to brush on the luster.
Can you see the difference? It's a little hard to pick up in a photo. The cookie in front has luster; the one in the back doesn't.
How about now?
The same luster dust color I used here can be found at Sweet!