Have never used royal iceing before and was woundering witch of the two is easyer to smooth flat? Royal or buttercream? Thanks!!!

I used RI years and years (and YEARS!) ago ... too long to even remember why I used it.

I use only BC now ... for everything. Icing, borders, stringwork, roses, flowers, etc.

Are you talking about covering a cake? I wouldn't cover a cake in royal only because it dries hard but I'm sure there may be some who do.

The only things I may use RI for are flowers and some detail work.

Thanks so much I think I'll stick to what I know and experiment later

If you want to ice a cake with it, don't use RI. Ick... It dries as hard as a rock. Nobody even eats my RI decorations b/c RI dries so hard and crunchy.