The Country Strong star, who is currently promoting her new cookbook, tells Bon Appétit magazine: 'I wouldn't say I'm a very original thinker, but if I have a good experience with something, I'll want to take it further or adapt it in some way.
'I'm not going to be doing molecular gastronomy. I'm a wife and a mum and a home cook.'
And the mum-of-two, who is married to Coldplay rocker Chris Martin, laughs off suggestions that she is planning to start her own food magazine.
'[I] don't know how that rumour got into the papers,' she says. 'It could not be further from the truth. I don't have time to bathe, let alone start a magazine.'
The 38-year-old actress, who learned to cook from her late father Bruce, prepared several dishes at her London home for the June issue of the US food magazine.
The former vegan reveals in her new cookbook – My Father’s Daughter – that when she began raising her two children, Apple and Moses, she wanted them to eat well and enjoy their food.
'Could I use some butter and cheese and eggs in my cooking without going down some kind of hippie shame spiral?' she writes. 'Yes, I could.'