Sandwich Dressing
Put four tablespoonfuls of vinegar and three of water into a saucepan over the fire; add a half teaspoonful of salt and a half saltspoonful of pepper. Beat the yolks of four eggs until creamy, add slowly to them the hot mixture. Stir over hot water until it is the consistency of mayonnaise dressing. Take from the fire and add carefully two level tablespoonfuls of butter.