Soy, Canola and Dairy-free margarine

[Guest guest]

I know this has been addressed in the past but I don't ever remember

seeing anything that would work for cookies and icings....My son

cannot have soy, canola or caseine so can't use margarine subs. I

have tried coconut butter in icing and cookies but did not like the

result. I have tried ghee but think that my son is still getting

caseine from it (home-made). I know that Mother's margarine is said

to make soy-free margarine at passover but I have never been able to

find it and I can't wait 'til then anyway. Anyone know how to make

your own margarine out of an acceptable oil? Any suggestions/ideas

would be appreciated. Thanks, Rosie