During the show, which was watched by 2.1million, Miss Lawson said: "There are those who believe that to fiddle in any way with a classic recipe is an act of desecration. Well, it's not a dishonourable stance, but it is a flawed one. The classics, in food as in literature, are the very forms that can withstand and indeed spawn a plethora of interpretations.
"Anyway, I can't apologise for taking liberties with a Caesar salad when the outcome is so pleasurable."
She added: "I suppose this riff in a way is like a culinary joke but it is so seriously good." But few were laughing after seeing it.
Novelli, 54, said: "Anyone who has trained as a professional chef, who has been taught about the classics, and I believe the Caesar salad is a classic, knows that you do not change it. People remember the texture of this dish, it's crunchy. You do not change that."
Many viewers agreed. On Twitter one said: "Deconstruction gone mad on Simply Nigella. I switched off after watching this crime against cooking."
Another added: "Think Nigella's lost it. She just baked a lettuce with anchovies, put a fried egg on top and called it a dish."
Simply Nigella represents the chef's comeback to the BBC. It follows a difficult few years in which she was divorced from Charles Saatchi and gave evidence in a trial during which she admitted taking cocaine.
After the first episode of the show, Miss Lawson was criticised for kicking off with a "recipe" for avocado on toast. One disappointed viewer of the BBC2 show joked on social media that "she'll be teaching us how to make a cuppa next".
Her breakfast bars from the second episode were criticised for including expensive ingredients such as goji berries and chia seeds.
- Daily Mail