Directions:
Mix one teaspoon of salt, one tablespoon of mustard, one tablespoon of sugar, one tablespoon of flour and a few grains of cayenne. Beat three eggs until lemon-colored and add the dry ingredients with one-half cup of vinegar and two tablespoons of melted butter. Cook over boiling water until thick; strain, add one-half cup of cream or milk. Beat until smooth, and cool.