I have a question about a prepositional phrase beginning with 'of'
“The Marmite and the dripping soak into the burned toast,” she says, of the culinary ode to her after-school snack, “and when you pop the tartare into it, it elevates the flavour to another place.”
In the paragraph, the phrase 'of the culinary ode to her after-school snack' is between commas. So I think it's additional information. But I wonder what word is linked to the preposition 'of'.
Is this sentence the same as the sentence
'I felt I was living through those moments with every word I spoke,” the Oscar-winning actor says of her new memoir,'