My three year old has commissioned a dinosaur cake for her birthday this Saturday, I have bought the relevant items, cake mix, dinosaur biscuit decoration (I'm a working mum, I do my best ;-) anyway, I have just read the instructions and the method asks for two cake tins (sadly I only have one cake tin of doom). So..... do I cook half the mixture (20mins) then turn the cake out, re-line tin to bake second half, OR do I bake it all at the same time (40 mins or so) then cut in half when cool. There is no time to purchase a second tin.