Cake Filling and Frosting
White Mountain Frosting
Boil together, without stirring, one cup of granulated sugar with one third of a cup of boiling water, for eight or ten minutes. When the sugar has been boiling five minutes, beat the white of one egg until it is very light. Then test the sugar mixture by letting a little run off the side of a spoon. If in falling it forms a delicate thread, it is just at the point to stop the boiling. When it has reached this point, pour it at once into the beaten egg in a small stream, stirring the egg constantly to keep it smooth. Continue stirring for two or three minutes until it begins to thicken, then spread it either between layer cakes for filling, or use it for frosting.
Caramel Filling
1 Cup of brown sugar.
¼ Cup of sweet cream.
1 Teaspoon of butter.
Boil all together until it threads, stirring it slowly as it boils. It will take about eight minutes. Use either for frosting or filling.
Chocolate Icing
½ Cup of sugar.
4 Tablespoons of water.
2 Eggs.
1 Ounce of chocolate, or
1 Tablespoon of Dutch cocoa.
1 Teaspoon of vanilla.
Boil the sugar, water, and chocolate together, two minutes, to render the chocolate smooth. Then add the beaten eggs. Cook two minutes more, stirring slowly and gently. Add the vanilla just as it is taken from the fire, and use at once, as it becomes firm quickly. It is good either for icing cakes or for filling.
Cream Filling
Make a cream sauce with one cup of milk, a tablespoon of butter, and a tablespoon of flour. Beat one egg with half a cup of sugar, and stir it into the sauce slowly. Cook for two minutes, or until the egg is done. It should look like a thick smooth cream. Flavor it with a piece of cinnamon bark boiled in the milk, or with vanilla or almond. Use this cream for filling, for layer cakes, or split a thin sponge cake in two, and spread it between the halves.