Dainty Chocolate Custards

Cook four tablespoonfuls of grated chocolate with one cupful of milk and cook in a double boiler until it becomes smooth; then add three cupfuls of milk and when hot pour it over one cupful of sugar which has been mixed with the well beaten yolks of four eggs. Return to the fire and stir until it begins to thicken. It must not boil. Add one teaspoonful of vanilla and when cool pour into tall glasses. Sliced banana added to this is delicious.
This same custard can be used in a pastry shell, especially if the bananas are added, as it is then a little thicker. It must be put in the shell, however, just as it is being served.