Put the dumpling bread in a large bowl, beat the eggs with milk and pour over them, add the semolina, oil, salt, nutmeg and parsley and stir everything well.
Lightly roast the onion in hot clarified butter, add the mushrooms and roast for about 2 minutes, then add everything to the dumpling mixture, stir well and let it steep for 25 minutes.
Then put the flour in a plate, knead the dumpling mixture lightly with your hands, then form 6-7 dumplings with wet hands, roll them through the flour and place in the boiling salted water, simmer on a slightly low heat for about 15-20 minutes.