Dissolve the arrowroot in just enough cold water to mix it to a smooth liquid paste, stir it into a quarter of a pint of water boiling upon the fire, with the white sugar; continue stirring until the mixture becomes clear, then remove from the fire and stir in the lemon-juice, put into a mould wet with cold water until it is cold. If the patient's condition will permit, cream and sugar may be eaten with it.
The Cooking Manual of Practical Directions for Economical Every-Day Cookery (1877).