Bob's your uncle!

Bob's your uncle!

  (British & Australian informal)
something that you say after you have explained how to do something, to emphasize that it will be simple and successful You simply put on the stain remover, leave it for an hour and Bob's your uncle, the stain's gone.
References in periodicals archive ?
Just make ID tattoos the must-have accessory for mindless hooligans, vandals and ne'er-do-wells and Bob's your uncle
all you need is 12 volunteers, a couple of National Trust Wardens, a smattering of tools, and then leave them all to simmer gently for a week and Bob's your uncle
Simply add the prefix "domesticated" to any curatorial category you care to mention and voila, Bob's your uncle
Add to that the Red strip, and that Milan are playing in white, and Bob's your uncle