Peel, wash and chop the potatoes. Pumpkin clean, wash and cut into pieces. Clean, wash and chop the carrots, potatoes, pumpkin and carrots in boiling broth for about 25 minutes. Puree potato-pumpkin-broth.
Season soup with salt, pepper and cayenne pepper. Add cream and bring to the boil again. Serve the soup in portions, with a dash of crème fraîche and prawns. Garnish with dill as desired