Black Hole
May contain traces of nut
If Nigella meant "extra virgin", why not say so? I can go to the shop and buy a bottle labelled extra virgin, I can't buy a bottle labelled "good olive oil". So, stepping back a bit, what's your definition of a "good size room"?But it is clear from the context: extra virgin olive oil is the good sort, ie, a first pressing and unblended.