Mayonnaise Sauce

In order to obtain a quick and certain mayonnaise sauce. it must be worked simply with a small wire whisk. Put five egg-yolks into a bowl suppressing every particle of the white, add some salt, white or red pepper, and ground mustard; after these are thoroughly mixed pour in slowly a quart of sweet oil and one gill of vinegar, alternating them without once stopping to work vigorously. In a few minutes the sauce becomes voluminous, consistent, smooth and firm.