-Move out of my, way, Peter, I want to make a cake. + How do you make a cake, Mum? - Well, listen and I’ll tell you. First I mix the fat and the sugar there, do you see? + Yes. -Then I add the eggs, one by one, with a little flour, and beat them into the mixture. + What cake are you making, mum? - a chocolate cake. + What's the salt for, Mum? - What salt? I don't put salt in a cake. + You did, you know. Perhaps you thought it was sugar. - What?! Oh-, good gracious, I've put salt in instead of sugar! The cake is spoilt.