Here is another idea if you haven't tried it.
Go to google images here -------> http://www.google.com/imghp?hl=en&tab=wi
Type in suet pudding and see if any of the pictures look like your grandmother's.
Most of the pictures will take you to the related website.
Go to google images here -------> http://www.google.com/imghp?hl=en&tab=wi
Type in suet pudding and see if any of the pictures look like your grandmother's.
Most of the pictures will take you to the related website.