In a large bowl combine flour, eggs, sourdough discard, milk and a teaspoon salt. Work the dough with your hands or a Danish dough hook. Make sure the dough is well incorporated. It will be a sticky and stiff dough and that is okay.
After you have finished preparing the knoephla dough, add the potatoes to the soup and bring to a low boil. You want the soup to continue to boil as you add the knoephla.
When the soup is at a low steady boil take two spoons and scoop up about a teaspoon or so of dough and then with the other spoon push this into the soup. You want them to be small pieces because they will get bigger as they cook. They may drop and then as the soup boils and the knoephla cook they will come to the top of the soup.
Continue this until the knoephla dough is gone. Then continue to boil your soup for 15-20 minutes more until the knoephla are cooked through.
Add the cream, stir and heat through. Serve! Goes well with crackers, sourdough bread and a summer sausage. You could also add pieces of bacon if you want a little extra hearty soup. Enjoy!