Cut the bread dumplings into slices. Fry both sides in 1 tablespoon of oil. Peel and dice the onion. Fry the onion in 1 tablespoon of oil. Cut the mushrooms into slices and add. Fry them briefly, then add the cream and water / broth. Simmer for 8 minutes and then bind with starch mixed in water and simmer for another 2 minutes. Season to taste with herbs, salt and pepper. Serve the sauce with the fried bread dumpling slices.