Welcome to the Cake Decorators Q&A

can the buttercream with ganache added be coloured with ordinary gel colour?? Also would this be ok for masking a drip cake? does it crust.

Hi elaine77

It can be coloured in exactly the same way as buttercream without the ganache and it will form a crust. It might be better to make a ganache drip as this buttercream is quite thick. You can try thinning it out with a little milk.
Hope this helps.

Hi thanks. The cake is gonna be chocolate with fudge filling but I want a white canvas on the cake because of the coloured drips. Just a bit worried about the chocolate showing through! do you think ganache might be better??

How about coating the cake with white ganache instead of buttercream? That would be so much better for coloured drips. White ganache can be coloured.

yes I think so I usually colour my white choc with regular gel colour plus a little vegetable oil. It works brill !

Yes, it does work that way. I usually use powder colours with cocoa butter. As long as it is oil based it will not seize or change the consistency of the ganache. The chocolate won’t show through the white ganache if you give a good layer of coating. Hope it goes well. 🙂

do you know if the ganache still sets if I colour it my way using a little veg oil only I haven’t put it into practice. thanks for your advice

one last question!! Is it possible to use coloured royal icing for the drip as I am having trouble getting the colours I want.

The ganache will still set with a little veggie oil. Yes, definitely you can use royal icing for the drips.