Heat the coconut oil in a large saucepan. Tip in the onions, carrot and peppers. Cook gently for 15 mins, to soften. Add the garlic and chilli, and cook for a few mins more. Pour over the chopped tomatoes and 800ml of the stock. Bring to the boil and simmer for 10-15 mins until the veg is completely tender.
Blitz the soup with a hand blender until smooth. Season and spoon into bowls. Serve either hot or cold. Enjoy!