I got this recipe from my mom a long time ago, and they're one of my favorites. I use my food processor to chop the ham, corned beef and sauerkraut. The prep time includes allowing the balls to cool in the refrigerator for an hour, but doesn't allow for letting the mixture cool before rolling into balls. My recipe doesn't include how many sauerkraut balls this makes, so I'm going to guess. The number will vary depending on how big you make the sauerkraut balls.