GOLDEN EGGS

Put the vinegar into a casserole and boil it till it almost evaporates, then add the butter and the flour, mix well, add the milk, stir till it boils, and cook for five minutes, stirring all the time; then add the raw yolk of egg, salt and pepper to taste, stir for a few minutes longer. Cut the whites of hard boiled eggs in strips, add them to the mixture. Turn out on to a shallow earthenware dish, rub the yolks through a sieve on the top. Put the croûtons round the edge.