Sea Foam Icing
1 cup brown sugar 1/3 cup water white of 1 egg Put sugar in saucepan with water; stir until sugar is melted; then put over fire and boil until syrup spins a thread. Beat white of egg until dry and add hot syrup slowly, beating all the time. When it foams, put between layers and on top of cake.
This should be beaten with wire whip on a platter, not in a bowl.