She was a household name in the early days of radio and chances are pretty good you know her by name. 

As most now know, she never really existed, the brainchild of a marketing genius. 

And "she" still haunts your grocery shelves to this day. 

Here's the story of how radio perpetuated the stardom of someone who never was. 

Her name: Betty Crocker. 

How America's Oldest Cooking Show Made One Woman A Household Name