Wash the parsley and puree with 4 tablespoons of water in a blender. Add eggs and mix briefly. Season with salt, pepper and nutmeg. Grease a shallow bowl, fill in the mixture and let it rest covered in a bain-marie for about 45 minutes.
In the meantime boil 1 litre of water. Add the lentils and broth to the water and simmer for 10-15 minutes. Wash the cauliflower, cut into florets and add to the lentils about 5 minutes before the end of the cooking time.
Season the stock with salt, pepper and curry if necessary. Cut the cooled egg whites into rhombs, warm up briefly in the broth again and serve the soup hot.