Found this on About.com, will have to adapt the sugar, tho' but it's egg/soy/dairy free, for the lady who can't eat eggs. Link here:-
http://www.google.com.au/search?q=http%3A%2F%2Ffoodallergies.about.com%2Fod%2Fmultiallergenfreerecipes%2Fr%2FLemon-Vanilla-Cake.htm&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a
There were other egg free recipes there too.
Good Luck
Spreading the Love
Silver Angel
SMILE!!