Take yolk of one hard-boiled egg and rub smooth in a bowl. Add two teaspoons of French mustard, salt, pepper, and little sugar. Add a little oil, and then a little vinegar. Garnish top with the white, cut in pieces.
SOUR CREAM DRESSING
Mix one cup of sour cream and three eggs, well beaten. Dissolve two tablespoons of sugar and one tablespoon of mustard in one-half cup of vinegar; salt, pepper and paprika to taste, and then stir this slowly into the cream and eggs. Put in double boiler, cook until thick, then add butter the size of an egg and cook about five minutes longer. Take from fire and bottle; this dressing will keep for months.
BOILED DRESSING
Mix one teaspoon of salt, one tablespoon of mustard, one tablespoon of sugar, one tablespoon of flour and a few grains of cayenne. Beat three eggs until lemon-colored and add the dry ingredients with one-half cup of vinegar and two tablespoons of melted butter. Cook over boiling water until thick; strain, add one-half cup of cream or milk. Beat until smooth, and cool.
FRENCH DRESSING
Mix one-half teaspoon of salt, one-fourth teaspoon of pepper, one teaspoon of sugar, a dash of paprika, two tablespoons of vinegar and four tablespoons of olive oil. Stir until well blended and use at once.
DRESSING FOR LETTUCE
Rub the yolks of two hard-boiled eggs to a paste, adding one teaspoon of salad oil or melted butter, being careful to add only a few drops at a time. Add one-half teaspoon salt, one-half teaspoon of prepared mustard, very little pepper, two tablespoons of white sugar. Stir very hard, then pour in gradually one-half teacup of vinegar.