Peel and chop the onion. Peel, wash and chop the carrots and potatoes, except 1 carrot. Fry everything in a pot in hot fat. Season with salt and pepper. Deglaze with 1/2 l water and wine. Bring to the boil and stir in the stock. Simmer covered for about 20 minutes
Cut the rest of the carrot into fine strips. Heat the oil in a small pot. Fry the carrot strips until golden brown. Drain on kitchen paper
Whip the cream until half stiff. Finely puree the soup, season with salt and cayenne pepper. Divide the soup into 4 plates and fold in the cream in streaks. Garnish with carrot strips and oregano