Welcome to the Cake Decorators Q&A

Hi
I am making a 21 cake and want to cover with chocolate ganache what is a good receipt to use.
How long will it keep once frosted.

Thanks
Amanda

Hello Amanda69

There’s a ganache quantities chart for the different types of chocolate here
http://www.cakeflix.com/blog/how-to-ganache-cakes-without-gnashing-your-teeth
The Shelf life of your cake depends on the type of recipe you are using. Sponge cakes last approx 5 – 7 days. chocolate cakes have similar but some mud cakes can last a few days more. Madeira cake 2 weeks from bake to eat. Information on the shelf life of ganache which you might find useful can be found here:
http://www.cakeflix.com/blog/the-shelf-life-of-ganache-by-madeitwithlove
Hope the information helps.