What is the hardest holding icing?

la_laa1, Sep 20, 1:32am
I have to ice some chocolate bars together to make a cake decoration in your opinion what is likely to stick them together best?

crystalmoon, Sep 20, 1:42am
why not melted chocolate.would definately hold well.

cookessentials, Sep 20, 1:46am
Royal icing would be the hardest.

la_laa1, Apr 2, 1:47am
Thanks! i'll try both things and see how I get on