Yes, you can - but they don't taste that great at least in our opinion. A great way of eating leftover potato dumplings is to cut them into slices and then fry them in oil the next day. This is called Kartoffelpuffer - and it is very similar to our u003ca href=u0022http://www.recipesfromeurope.com/german-potato-pancakes/u0022u003eGerman potato pancake recipeu003c/au003e. This used to be one of Lisa's absolute favorite meals when she was a kid. Tastes great with apple sauce!