Heat the olive oil over a medium heat. Add the onion and a pinch of salt and pepper and cook for 5 minutes until soft. Add the garlic and cook for another 5 minutes followed by the paste then cook for another 2 minutes.
Put the sweet potato and carrot in the pot along with the stock and cook for 30 minutes until everything is soft. Use an immersion blender (or place in a blender in batches) to blend until smooth.
Place over a low heat and add the cheese and the chilli flakes if using. Serve with extra grated cheese and fresh black pepper and chilli flakes if using.
Video
Notes
Nutrition information is an estimate and will vary depending on the exact ingredients used.