01 - Preheat the oven to 400°F. Toss the pumpkin cubes with 1 tbsp olive oil and spread evenly on a baking sheet. Roast for 20–25 minutes until golden and fork-tender.
02 - In a large pot, heat the remaining olive oil over medium heat. Add the onion, garlic, and carrot, and sauté until softened, about 5 minutes.
03 - Add the roasted pumpkin, cumin, nutmeg, black pepper, and a pinch of salt. Stir for 2 minutes to toast the spices and develop the flavors.
04 - Pour in the vegetable stock and bring to a boil. Reduce the heat and simmer for 10 minutes, allowing the flavors to meld together.
05 - Remove the pot from heat. Use an immersion blender to purée the soup directly in the pot, or transfer to a countertop blender in batches, until completely smooth and velvety.
06 - Stir in the coconut milk and reheat gently over low heat. Taste and adjust salt and pepper as needed.
07 - Ladle the soup into bowls and garnish with fresh coriander or parsley and a sprinkle of roasted pumpkin seeds, if desired. Serve hot.