Stir dumpling powder and chopped herbs into 500 ml of cold water. Let it soak for 10 minutes. Shape the dumpling dough into approx. 30 small dumplings. Then put in boiling salted water. Let simmer for 5-10 minutes over low heat.
Cut the spring onions into small pieces. Clean the mushrooms and cut into slices. Peel and press the garlic.
Heat the oil in the pan. Add spring onions, mushrooms and garlic and fry for 10 minutes. Then add the chunky tomatoes and reduce a little. Season to taste with the broth and the spices.