What is Crème anglaise?

This is the French term for the traditional British custard sauce made with egg yolks, sugar and milk and/or cream and flavoured with vanilla. Proper home-made custard is an absolute dream, but don't cut corners or it just won't be the same. The key to making custard is to heat it just enough to thicken, but not too much so that it curdles. A neat trick is to add a little cornflour which will help stabilise the eggs.