Grease and flour a square cake pan, or deep pie pan.
Sift the dry ingredients.
Beat the egg white until it is stiff and set aside,
Beat the egg yolk until it is creamy and set aside.]
Cream the shortening and sugar together, add the beaten egg yolk, and the sifted dry ingredients alternately with the milk. Add the vanilla. Fold in the stiffly beaten egg white.
Spread half this mixture into your prepared pan.
Filling
Mix all the ingredients together, then spread half over the mixture in the pan. Add the rest of the cake batter, and spread the remaining mixture of the filling on top.
Bake at 350 °F (177 °C) for 45 minutes.
Icing
While the cake is baking, make the icing. Remove the cake from the oven, and pour the icing over it. Let cool a while, but serve warm.
Notes
The batter may seem very thick, but it in fact perfect.
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