My family always called these Cannon Balls, because they were so heavy. However this was a beloved dish from my grandmother. They always had it with a meal of Hasenpfeffer (sour rabbit) and Glacé (gravy). Have copies of very old family photos with our great hunters. Hanging on ropes appear to be about 30 rabbits. My family probably ate lots of Hasenpfeffer. Think it would be good with other fillings too: bacon, broccoli, ham, onions. You can use store-bought croutons for the filling.