It is no lie. Chocolate Sheet Cake - 'Preheat oven to 400 (slight oversight on the keyboard makers' part) C'. For a long time I have been reading takeaway pizza boxes that tell me to reheat the pizza, simply preheat oven to 350* C... Thinking 'I'll just BUY A VOLCANO, shall I??'. Dude. I want to own one of these superovens. So I can cook my chocolate properly, and not approximate like the poor. Now I have a book and all.