Jason Walls: Political correspondent on the brown onion hack in his supermarket challenge - Matt Heath & Tyler Adams Afternoons

Supermarket shoppers using a “brown onion hack” to reduce their grocery bills are being warned it is theft.

The 'brown onion hack' involves putting more expensive fruit and vegetables through the self-checkout as “brown onions” to save money.

Brown onions are currently selling for $1.49 a kilogram, compared to oranges for $5.

Matt Heath and Tyler Adams were talking about it when Jason Walls was waiting to talk politics - he shared his own supermarket challenge.