Final answer:
Knodel is the German dumpling that is traditionally served in stews.
Step-by-step explanation:
The German dumpling that is traditionally served in stews is called Knodel. Knodel is a type of dumpling made from ingredients such as potatoes, bread, or flour, and it is often boiled or steamed. It is a popular dish in German cuisine and is often served as a side dish or added to stews or soups for extra flavor and texture.