Never heard of a pattycake maybe I'm too young I'm only 55 !!
They have been called patty cakes since as far back as 1765.
From Wikipedia, the free encyclopedia
The earliest recorded version of the rhyme appears in Thomas D'Urfey's play The Campaigners from 1698, where a nurse says to her charges:
...and pat a cake Bakers man, so I will master as I can, and prick it, and prick it, and prick it, and prick it, and prick it, and throw't into the Oven.
The next appearance is in Mother Goose's Melody, (c. 1765), in the form:
Patty Cake, Patty Cake,
Baker's Man;
That I will Master,
As fast as I can;
Prick it and prick it,
And mark it with a T,
And there will be enough for Tommy and me