Well over 100 years old, this recipe has been part of my family forever. My Grandmother, born in the 1880's taught it to us, and who taught it to her, I have no clue. It turns out to be a very large pie with a layer of custard, topped with a layer of blueberries, and then a layer of meringue. If you like blueberries, its a keeper. My Grandma always said that you could make a smaller pie by using a pint of blueberries, but we have never tested that theory.