This is the best Rueben Balls recipe you will find, and these are the best balls you will ever put in your mouth.  Not hyperbole. Recently I made Baked Reuben Dip as part of a Vikings Game Day Appetizer series (Go Vikes and Skol!!) and had half a jar of sauerkraut leftover. Because no one eats just sauerkraut I wanted to do something to use