Peel, wash and cut the potatoes into pieces. Clean, wash and chop the soup greens. Onions peel and chop. Cut bacon into small pieces. Heat oil in a pot.
Fry onions and 60 g bacon. Add potatoes and soup vegetables, fry briefly. Deglaze with vegetable stock. Wash the marjoram and add 2 stems. Bring to the boil and cook over medium heat in an open pot for about 15 minutes.
In the meantime, pluck the leaves of the remaining marjoram, except for some garnish, and put them aside. Leave the rest of the bacon in a hot pan until crispy. Remove the marjoram stalks from the soup. Purify the soup.
Add cream. Bring to the boil again and season to taste with salt, pepper and marjoram leaves. Arrange soup on plates, garnish with bacon and marjoram.