Knoephla Soup (Dumpling Soup)

Combine water, potatoes, carrots, onion, celery, bouillon cubes, salt, and pepper in a large pot; bring to a low boil. Cook until vegetables are tender, 10 to 15 minutes.

While the soup is cooking, mix the dumpling mixture. Combine 2 cups flour, warm water, eggs, baking powder, and salt in a bowl. Knead with your hands until dough is combined and a little sticky, adding more flour if necessary.

Use scissors to cut 1/2-inch by 1-inch pieces dough directly into the soup; dumplings will swell as they cook so don't cut the pieces too big. Cook for 10 to 15 minutes.

Add half-and-half and cook until heated through, about 5 minutes. Serve immediately.