Nadine tells the camera 'I've no idea what I'm doing' as the contestants get to grips with a Choux bun recipe and chocolate showstopper.
The 35-year-old also has a chocolate disaster with the kitchen mixer before the Girls Aloud star also can be seeing going to the fridge to retrieve her bake, only to drop some of it on the floor.
Among those battling it out alongside Nadine to be crowned Star Baker in this year's charity series are: Daisy Ridley, James McAvoy, Kelly Holmes, John Bishop, Stacey Dooley, Tom Allen, David Baddiel, Jade Thirlwall, KSI, Ade Adepitan, Philippa Perry, Nick Grimshaw, Rob Beckett, Alexandra Burke, Anneka Rice, Reece Shearsmith, Dizzee Rascal, Anne-Marie and Katherine Ryan.
Read more on msn.com