Peel the pumpkin, onion, potatoes, apple and carrots and cut them into medium large pieces.
Fry in a little oil in a large pot as follows: First put in the pumpkin, potatoes and carrots, and only after about 5 minutes the onion. When the onion has coloured, add the stock and the apple pieces.
Cook slightly for about 20 minutes, check that everything is soft and then puree with a hand blender.
Flavour with some orange juice, you can also add some sweet cream. Season with salt, pepper and a pinch of nutmeg. Done!