Pouring custard

There are some things that happen to you in childhood that you never quite get over, and a good custard is one of them. My mother used to make custard constantly, in her toughest old saucepan, resting the whole pot, with a sizzle, in the kitchen sink to stop it from cooking further and turning into scrambled eggs. If this is your first attempt at custard, fill the sink with cold water now. You may need it.