Preheat your oven to 200 °C.
Cut the top off the pumpkin and scoop out the seeds and fibres and discard.
Cut the pumpkin into 4 quarters and place them a baking tray. Drizzle 60 ml of olive oil over the pieces.
Slice the top off the head of garlic and drizzle over 15 ml of olive oil. Wrap in foil - so that it is completely sealed. Place on the baking tray with the pumpkin and roast in the oven for 45 minutes.
Heat 15 ml of olive oil in a large saucepan and gently fry the onion for a few minutes.
Add the vegetable stock and bring to a simmer, then cover and take off the heat.
When the pumpkin is cooked, discard the skin and add the flesh to the saucepan.
Squssze the garlic flesh out of the skins and add to the saucepan, along with the coconut milk.
Bring the contents to the boil and cook for 10 minutes on a medium heat.
Remove from the heat, and set aside to cool slightly before pureeing with your stick blender.
Use the pumpkin seeds and the thyme leaves to garnish. If you like, you can toast them.