At 80, Britain’s queen of cookery has written a surprising new book about spirituality that was turned down by six publishers. She talks about meditation, MasterChef and her beloved Norwich FC

Why is it so exciting – and so nerve-racking – to be meeting Delia Smith? Down the years, I’ve interviewed a lot of famous and important people (and three prime ministers), and yet I can’t remember any of them having induced this combination of extreme eagerness and mortal fear. Is it because when I was a teenager, she was one of the very few truly successful women then in public life? I suppose it must be. It’s no exaggeration to say that she was up there with the Queen, Mrs Thatcher and Madonna – and just like them, her word was The Law. For my 21st birthday, my parents gave me a cheque and a copy of Delia Smith’s Complete Cookery Course, and for all that I was still in my radical feminist stage, I hardly batted an eyelid. Simone de Beauvoir was all very well, but did she have any advice on roasting times or how to make sure your yorkshire puddings rise? No, she did not.

Anyway, one result of this desperate, anxious state was that I stupidly decided to bake a cake for her – my God, even to write such words – and when I arrive at her cottage, the conservatory of which I recognise from the TV shows she once presented there, the very first thing I do is hand it over. “It’s a bit … flat,” I say, mournfully (for those who are interested, it’s Nigella’s ordinarily easy-peasy cardamon and marzipan loaf). But it seems that I’m worrying unnecessarily. Delia looks completely delighted by my foil-wrapped house brick, cradling it in her arms as if it was a newborn baby. “You used good ingredients,” she says, kindly. “It will still taste nice.” Cooking isn’t about perfection, she tells me; it’s about achievability. “I once went to a Women’s Institute thing, and I remember thinking: I’m not at all sure my jam would pass muster here.”