Roast the hazelnut leaves in a coated pan without fat until golden brown, remove. Clean the leek, cut into fine rings and wash. Heat the fat in a pot and sauté the leek in it. Sprinkle with flour, sweat it and add wine and vegetable stock while stirring. Bring to the boil.
Grate cheese and melt it in the soup, stirring little by little. Bring to the boil and season with salt, pepper and sugar. Add cream and stir in. Wash chives, dab dry and cut into small rolls. Sprinkle soup with chives and hazelnut leaves
With 8 people: