Mix two tablespoons of vinegar and one of mustard, one teaspoon of oil or butter melted, pepper and salt to taste. Add this to two hard-boiled eggs chopped fine, with a small onion and about the same quantity of parsley as eggs; and mix all well together.
MAÎTRE D'HÔTEL BUTTER
Work into one-half cup of butter all the lemon juice it will take, and add a teaspoon of minced parsley.
PICKLE SAUCE
Cream two tablespoons of butter, add one teaspoon of salt and one tablespoon of chopped pickle. A speck of red pepper may be added.
SARDELLEN, OR HERRING SAUCE
Brown a spoon of flour in heated fat, add a quantity of hot fish stock and a few sardellen chopped fine, which you have previously washed in cold water, also a finely-chopped onion. Let this boil a few minutes, add a little vinegar and sugar; strain this sauce through a wire sieve and add a few capers and a wineglass of white wine and let it boil up once again and thicken with the yolk of one egg.
SAUCE VINAIGRETTE
Rub the mixing bowl with a clove of garlic, add one-half teaspoon of salt, dash of white pepper, and a teaspoon of cold water or a bit of ice, then four tablespoons of oil. Mix until the salt is dissolved, remove the ice and add ten drops of tabasco sauce, two tablespoons tarragon vinegar, one tablespoon grated onion, one tablespoon chopped parsley and one chopped gherkin.