http://www.musicradiocreative.com/podcast
Happy Pancake Day! A radio donut is not a jam filled delight but, in radio terms, it's a piece of production with singers or voice over at the start, a place for you to talk over, followed by a similar ending to the start of the donut.

As the host you fill the gap in the middle of the donut with the juicy content. For example what's coming up on your radio show or podcast!