Heat in a double boiler to the scalding point and then drop in the yolk of an egg. Stir until thick. Use at once. If it should curdle, add one tablespoonful of boiling water and stir constantly until thick.
RAVIGOTTE SAUCE
Chop very fine sufficient parsley. To measure
One-half cup,
One large green pepper,
One onion,
One leek.
Place in a bowl and add
One cup of mayonnaise,