Allow half a cupful of grated chocolate to a pint of water and a pint of milk. Rub the chocolate smooth in a little cold water and stir into the boiling water. Boil twenty minutes, add the milk and boil ten minutes more, stirring it often. Sweeten to your taste.
The French put two cupfuls of boiling water to each cupful of chocolate. They throw in the chocolate just as the water commences to boil. Stir it with a spoon as soon as it boils up, add two cupfuls of good milk, and when it has boiled sufficiently, serve a spoonful of thick whipped cream with each cup.
The Whitehouse Cookbook, by Mrs. F.L. Gillette (Year 1887)