EYEfi SPARC Invention

In this elimination challenge, contestants must choose to use either ingredients from an ordinary pantry or an extraordinary pantry.

A tiny budget, a thirst for living frugally, and a desire to have a home that leaves a small footprint can force some radical thinking. So when electrician and stay-at-home dad Tom and his doctor wife Zewlan decided to build their new home in Ocean Shores, size was everything. Their plan is for a solar passive family home with three modest bedrooms that maximise potential views; small, beautiful spaces on a firm budget of $350,000. With the help of award-winning architects Melanie and James, they've come up with a design based on the three Ss: small, simple and straightforward. Built out of chipboard, the house will be just half the size of the average Australian home. In a simple layout, three modest bedrooms will connect to one long outside/inside corridor running the length of the house and open underneath, like a deck. The lounge, kitchen and mezzanine will all be easily closed off with huge sliding glass. Tom's biggest concern is for the finishes after the exposed chipboard is damaged by some wet weather, he's keen to get the roof on. Will financial pressure and some inclement weather force a re-think or will he and Zewlan stay true to their small house philosophy?

The contestants discover the mystery box, covered in a Union Jack flag, has been set by guest chef Gordon Ramsay.