Place all ingredients, except cream, in a large pot or saucepan. Bring to a simmer over medium heat until vegetables are tender.
Take off heat. Using a stick blender, blend until smooth.
Add the cream and stir through (do not boil after adding cream).
Add any salt or pepper if needed, and serve with bacon and parsley (if desired).
Notes
Tip: Pumpkin soup is so good on its own, it doesn't really need 'help' with any additional ingredients. However, for an incredible depth of flavour, adding a swirl of cream adds extra richness to the soup.