Peel and finely dice the onion and garlic. Heat the oil in a pot. Fry the salami slices briefly in the oil and take them out. Add onions and garlic to the oil and fry. Add oregano and fry briefly.
Stir in the tomato paste, sweat it, deglaze with tomatoes and stock. Bring to the boil and season to taste with salt, pepper, sugar and paprika. Simmer for 3-4 minutes and stir in cream. Wash the marjoram, shake dry and pluck the leaves from the stalks.
Crumble feta cheese. Sprinkle soup with slices of salami, cheese and marjoram.