DUTCH SAUCE
Half a pint of thick white sauce, 1 raw yolk of egg, 1¹⁄₂ teaspoonfuls lemon-juice, ¹⁄₂ oz. butter.
Method.—Make the white sauce hot, ascertain that it has sufficient seasoning, and when it reaches boiling point draw the pan to the side of the stove and stir in the yolk of egg beaten up with the lemon-juice and continue to stir for a few moments until the egg has thickened, but it must not boil or it will curdle and be spoilt. Then remove the pan from the stove and stir in the butter (which should be divided into little pieces) by degrees, and if the sauce is not to be used at once, keep it hot by placing the saucepan in a larger vessel of hot water. Dutch sauce is nice with almost any kind of vegetable (including potatoes), and also with macaroni.