½ litre of milk or asparagus water 60g plain flour 70g butter Sea salt Black pepper Nutmeg Method Melt the butter in a saucepan on a low heat. Add the flour and stir slowly for about 5minutes. Remove from heat and add warm milk or asparagus water and stir. Return to heat and keep stirring until thick. Add sprinkle of nutmeg, salt and pepper to taste. Cook’s note: brush a little butter on top of the sauce to stop a crust forming.