I think the recipe may have been too wet. Also, this is the way my grandmother made them (she was Gottsheer) except she added cooked chopped bacon to the dough before forming it. They turned bluish in the water, but they tasted great and sometimes when they were boiles and drained, she would fry them in a little bacon grease. (Yes I have had a quintuple bypass, and yes it was worth it) ;-)
I followed the directions, but something must have gone wrong because the potato-balls fell apart in the boiling water. I ended up-reforming them and baking them instead.