Can gum paste substitute fondant?!

Best Answer - Chosen by Voters

I don't think I would....gum paste dries hard as opposed to fondant, but it won't hurt the taste, the outside will just get hard. =)

gum paste is usually used for decorations rather that for covering a cake... so it kinda depends on what you're using it for:

"Besides covering a cake in fondant, fondant can be used to cover the cake board and make some decorations that don't require too much flexibility, such as bows. Gum paste is softer and more pliable. It is easier to mold into all kinds of shapes. Gum paste is usually used to make figurines, many having tiny little details. While you can try doing this with fondant, it doesn't quite shape as smoothly and it's a bit more difficult to work with. While gum paste is considered edible, it will dry very hard. You can save gum paste figures and flowers as keepsakes and they will last a very long time."

http://ezinearticles.com/?Fondant-vs-Gum-Paste&id=3579565