I have a fishing themed cake coming up and I was curious about using modeling chocolate. I usually use fondant or cake dough covered in fondant but I'm wondering if modeling chocolate is easier (and tastier) to use?? How hard is it to color or "paint" on?
Modeling chocolate is definitely better tasting - it tastes just like Tootsie Rolls. Once you've made it, you handle/store just like fondant. It may need a few seconds in the microwave to get started since it does get a little firmer though. Painting is about the same as fondant. If you use something water or alcohol based, it's going to bead up. Try to use a gel base or mix your color with piping gel.
Modeling chocolate is my go to medium for figures. I usually try to color the modeling chocolate the lightest color in whatever I am making and finish it by dry brushing dusts. Be cautious with gel colors. Unless diluted with alcohol, I have found that it will not dry. You can use melted cocoa butter as a medium for mixing petal dusts, which will adhere to the chocolate without beading up. I made the body of this fish out of Rice Krispy Treats, on a strong wire, for support.