Using a sharp chef’s knife, peel each pumpkin and cut it in half. Scoop out the seeds, then cut the pumpkin into ½-inch chunks.
Heat the olive oil in a large stock pot over medium heat. Add the onion and garlic and cook, stirring frequently, until soft and translucent, about 5 minutes.
Add the cubed pumpkin and cook for about 10 minutes, stirring occasionally, until it begins to soften and turn golden around the edges.
Pour in the broth, then add the pumpkin pie spice and salt and pepper to taste. Bring to a boil.
Reduce the heat and simmer uncovered for 15–20 minutes, or until the pumpkin can easily be pierced with a fork. Remove the pot from the heat.
Carefully purée the soup directly in the pot with an immersion blender until completely smooth and no chunks remain. The soup should be thick and creamy.
Pour in the heavy cream and stir until fully combined.
Ladle into bowls, add your favourite toppings, and serve hot.
Notes
Choose cooking pumpkins: Sugar pie pumpkins work best here. Skip large carving pumpkins, which tend to be more watery and less flavourful.Don’t rush the pumpkin: Let the cubes develop some golden colour before adding the broth. That extra bit of cooking adds depth to the finished soup.Watch your broth: Broths vary quite a bit in saltiness, so season lightly at first and adjust after blending.Keep the cream smooth: Add the heavy cream after blending and off the heat to help keep the soup silky.Make ahead shortcut: Peel, seed, and cube the pumpkins ahead of time and refrigerate until you’re ready to cook.Save the seeds: Don’t toss those pumpkin seeds! Use them to make my roasted pumpkin seeds for a crunchy snack or an easy topping for your soup.Nutrition note: Nutritional information does not include any optional toppings.