It is the second year Sainsbury's has partnered with the show and the deal will see the finalists filmed discussing their favourite recipes, trying new ones and attempting cooking challenges.
The videos will be shown throughout the show's nine-week live run on the X Factor website and Sainsbury's sites.
Last year Sainsbury's claims its X Factor videos attracted 1.2m views.
Amanda Metcalfe, head of online marketing at Sainsbury's, said: "The appetite for The X Factor content in the UK is insatiable.
"Last year's partnership gave us a unique way of using online video content to engage with our customers at a traditionally busy time of year. Last year proved a huge success and we predict this year will be even bigger."