I wonder if they just go through the motions to show how its done, and then show one that was "made earlier" as the finished result. I love Nygella as well but she does use some strange ingredients that i've never heard of and would'nt know where to get them, and I don;t beleive she eats as much as she makes out, she'd be as big as a house.
Heck! I've never got that far ... she flashes those eyes at the camera and moves her hands in some gooey mixture and smiles, and i get this rushing sound in my ears and everything goes black, and when I wake up, the present Mrs Hughes is yelling at me ...