I had made that one time several years ago. The recipe was called
friendship cake. My neighbor gave me a starter. You would feed it every day for a month(you needed to use a gallon jar). Then when you made the cake, you used some of the fruit, divided the rest into starter packs keeping one for your next batch and passing the others along to friends-hence the name, and I believe it was an Amish recipe to begin with. I went online, and found the starter recipe
http://allrecipes.com/recipe/friends...er/detail.aspx and the cake recipe
http://allrecipes.com/recipe/thirty-...iendship-cake/
Hope this is what you are looking for. Will you be bringing a starter over to me in 30 days? ;-)