Cheese sauce

*** 1 tablespoon of cornflour to ¼ pint milk, adding a little drymustard powder if liked and seasoning to taste. Mix the cornflour to apaste with a little of the milk, heat the rest to nearly boiling point.Add the HOT to the COLD, (not the other way around) stirring as you do,then return the mixture to the pan. heat slowly, stirring constantlyuntil the mixture thickens, simmer for a minute ir so, still stirring,then take off the heat and add the cheese - stron is best.