Put the tomatoes in a mixing bowl and puree them. Peel onion and garlic and dice finely. Wash tarragon, dab dry and put some leaves aside for garnishing. Chop the remaining leaves. Heat the oil in a pot and fry the onions and garlic until transparent.
Add tomato paste and tarragon and stir in. Deglaze with the pureed tomatoes, bring to the boil and season with ketchup, salt, pepper, sugar and paprika. Serve the soup with a dash of crème fraîche sprinkled with coloured pepper on a soup plate. Garnish with the tarragon put aside