LIGHT CAKE

2 lbs. of brown breadcrumbs, 1/2 lb. of sultanas, 3 eggs, yolks and whites beaten separately; 2 oz. of butter, as much milk as required to moisten 1/4 lb. of sugar. Rub the butter into the breadcrumbs, add the fruit, sugar, yolks, and lukewarm milk. At the last add the whites beaten to a stiff froth. Put the mixture in a well-greased tin, and bake 1 hour in a moderate oven.