Ok so it's Nigella's Stem Ginger Gingerbread and it's supposed to be cooked in a loaf tin 23x11x6cm. I'm thinking of doing it in a 9-inch heart-shaped tin. (It's BIL's favourite and I'm doing it for their anniversary.)
I've worked out that the heart tin is about twice the capacity of the loaf tin. Do I have to double the quantities or will a flatter cake be ok?
And how would the cooking time be affected? It's normally 1 - 1 1/4 h
Thanks :)