Part of milk, boiled with sugar, biscuits to soak swelling. Plums are free of stones and cook with apples until soft. In the pan, greased with some of the melted the butter, rank order of soaked biscuit, fruit row until finished. Cover with a mixture of egg remaining milk and vanilla. Watered with remaining butter. Bake in a water bath. Finished cake sprinkled with powdered sugar.