Clean and wash the nettle. Pour about 6 1/5 cups (1.5 L) of water in a pot and leave it to boil. Add the nettle to the boiling water and boil about 15 min.
Pour in some of the broth and stir energetically until there's no lumps left. Return the nettle and salt. Boil the porridge another 10 min. and add the eggs.
Stir well and remove from the stove after 5 min. Serve the porridge sprinkled with feta.