Heat the pan, add oil and heat gently, add butternut squash, potato and carrot, cook for 10 minutes until slightly softened.
Stir in garlic, lemon grass and chilli and cook for 5 minutes.
Add water and simmer gently uncovered for 10 minutes.
Stir in the cream, coconut milk and cook for a further 10 minutes uncovered to reduce by a third.
Puree the soup in the pan with an electric blender for a smooth texture.
Stir in red pepper, season to taste and finally swirl in lime juice and serve immediately.
To make your soup extra special:
Toast flakes of fresh coconut flesh and pile in the centre of each soup bowl. Sprinkle over freshly grated lime zest, add a generous dollop of creme fraiche and, if you are a chilli lover, finish with a few drops of chilli oil.