Orange Cake (Quite Rich)

Ingredients:

• 4 oz butter
• 4 oz sugar
• 3 eggs, separated
• Grated rind of ½ orange
• 6 oz self-raising flour or 6 oz ordinary flour sifted with 1 ½ teaspoons baking powder
• Juice of ½ orange, 2 dessertspoons

Butter Icing
Beat together 2 Tablespoons butter and 3 Tablespoons icing sugar.

Method:

1. Cream butter and sugar.
2. Add egg yolks, one at a time and beat well. Add grated rind.
3. Add egg whites which has been beaten to a stiff froth.
4. Add flour, folding it in and when smooth add orange juice. 
5. Pour batter into two sandwich tins which has been greased and lined. 
6. Bake for about ½ hour in moderate oven.
7. When done, remove cake from oven and cool on cake rack.
8. Spread on top butter icing and sprinkle over it colored sugar drops, chopped walnuts or grated chocolate.