Fizzy Yoghurt

A recipe discovered by a Mr Arthur Shappey, Esquire. Mr Shappey is not known for his culinary expertise.

ARTHUR: Oh, Douglas, you should have asked me.
DOUGLAS: Should I, though, Arthur, really? The inventor of fizzy yoghurt?
ARTHUR: To be fair, I didn’t invent that so much as discover the process that makes it.
DOUGLAS: Yes... Yoghurt plus time!