How to make pumpkin soup from scratch Place peeled pumpkin, onion, garlic, broth/stock and water into a pot; Boil rapidly for 15 minutes until pumpkin is very tender; Use a stick blender or transfer to blender to blitz smooth; and Adjust salt and pepper to taste, then add either milk OR cream – whichever you prefer. The secret ingredients are the garlic and onion. It makes all the difference to add extra savouriness! 17 views15:19