Heat butter in a large pan over medium-high heat. Add the diced ham and dumplings and fry for 3 minutes.
Add the sauerkraut and fry for 1 minute.
Deglaze the pan with vegetable stock. Season with a pinch of caraway powder, a pinch of nutmeg, and salt and pepper to taste. Bring to a boil over medium-high heat, then reduce heat to medium and simmer for 2 minutes.
For a vegetarian variant, omit the bacon or ham and use dumplings with a vegetable filling.