Sauce Tartare

½ teaspoon mustard
1 teaspoon powdered sugar
½ teaspoon salt
Few grains cayenne
Yolks 2 eggs
½ cup olive oil
1½ tablespoons vinegar
Capers½ tablespoon each, finely chopped
Pickles
Olives
Parsley
½ shallot, finely chopped
¼ teaspoon powdered tarragon

Mix mustard, sugar, salt, and cayenne; add yolks of eggs, and stir until thoroughly mixed, setting bowl in pan of ice-water. Add oil, at first drop by drop, stirring with a wooden spoon or wire whisk. As mixture thickens, dilute with vinegar, when oil may be added more rapidly. Keep in cool place until ready to serve, then add remaining ingredients.