Chocolate marshmallows
Buy two ounces of finely powdered white gum arabic and let it stand, covered with eight tablespoonfuls of cold water, for an hour. Put it then into a double boiler, and let it heat slowly until the gum is dissolved. Strain through a cheese-cloth, wash out the double boiler and return the gum arabic to this with seven ounces of powdered sugar and two tablespoonfuls of grated chocolate. Stir over the fire for about three-quarters of an hour. At the end of this time the mixture should be stiff. Take from the fire, beat rapidly for two minutes, put in a teaspoonful of vanilla, and pour into a pan which has been well dusted with corn-starch. When cold cut into squares.