I want to decorate a cake (probably with fondant) to have it look like the sky. However, I'd like the bottom to be lighter and for it to gradient to super dark blue/black on the top/center of the cake (similar to the sky in the attached image). Can this be done with just painting the color on? If so, any tips? Thanks!!!
You can use the Wilton spray mists but you have to practice on papertowel first...They tend to sputter a bit...You can paint it but unless you are a really good artist/painter and know how to mix the colors gradually with a spatula etc..it is very difficult..however I have seen some awesome cakes by some cake artists!!
Yes!! You can! Thin decorator gel color with vodka and start painting (practice on scrap fondant first). The more gel the darker the color. Use a VERY good quality brush so the bristles don't fall out and get on the cake. I used a silicone bbq brush (because I didn't need it very detailed). You can also pat the color with white paper towel (I use Viva, always). That will give it somewhat of a sponge look. You'll find that the coloring acts a lot like water color paints. This is a great technique. I also finished with luster dust to add shine. Here's a sample of the technique on a red and orange cake I did. I wanted to the color to build and intensify on top. I wish I had a closeup. Good luck.
Oh, and the Wilton spray mists smell and taste terrible. They are really cool and work for certain things, but the taste leaves a lot to be desired.
PME spray colors work well, although they are $$.