Cut the sheep`s cheese into 8 cubes, then form 8 dumplings from the dumpling and fill each with a cube of cheese. Seal the dumplings, put them in boiling salted water and let steep for 20-25 minutes.
Prepare the sauce in the meantime. To do this, dice the onion and sweat it in butter, then add the broth and milk, stir in the cream cheese and let it boil briefly. Now add the spinach and simmer for 5 minutes over low heat.
It is best to arrange the dumplings with the sauce in a deep plate. I usually make double the amount of sauce because it is also spooned like that.