The programme returns to Channel 4 on Tuesday 27 August, the third series since it moved across from BBC One.
Online project manager Helena (pictured above), 40, lives in Leeds and spent much of her childhood watching her Spanish grandmother cook and bake.
Sportswear fashion designer, Amelia, 24, is from Halifax and honed her baking skills while at university.
International health adviser David (pictured above), 36, is originally from Yorkshire and as a child, his mum baked all the time, meaning the family never ate a shop-bought loaf at home.
Finally, support worker Dan, 32, is from Rotherham. He says he has fond memories of his mum showing him how to bake a Victoria sponge as a child.
Watchdog investigating girl's death after MRI scan
BBC News Online
The circumstances surrounding the death of a 14-year-old Devon girl following an MRI scan are to be investigated by a national watchdog, it has been confirmed.
Alice Sloman, from Torbay, had autism and was given an anaesthetic for the scan after becoming "extremely anxious" and "hypersensitive".
But a hormone given for a growth defect led to an undiagnosed condition which enlarged her heart and put her at danger when anaesthetised.
She died in Bristol Children's Hospital in October 2018, three days after becoming suddenly unwell during the scan carried out under anaesthetic at Torbay Hospital.
Torbay Hospital referred the case to the the Healthcare Safety Investigation Branch (HSIB).
The HSIB has now published an interim report, confirming an investigation into aspects of how hospitals support children with special needs, and their families, when a general anaesthetic was required.
It will also look at the procedures that staff follow if the young person becomes unwell under anaesthetic.
We will continue to provide whatever information we can to support that review."