I've just written a blog post about a new book coming out for making and decorating wedding and celebration cakes for allergy sufferers and those with special diets.
The article covers a new book coming out from chef Gemma McFarlane and there are map links on her website to other bakers who make wedding cakes for those with special dietary requirements.
Hope this will help anyone who is looking for this kind of cake.
Here's a link to the article if you are interested http://www.buckinghamevents.co.uk/blog/free-wedding-cake/