Air Fryer Sweet Potato & Butternut Soup

Sweet potatoes and butternut are popular seasonal vegetables in the colder months, and combine perfectly to make this hearty soup. This soup would usually take an hour to make using a hob but it can now be ready in half that time thanks to the speedy air fryer. And the intense heat of the air fryer quickly caramelises the roasted vegetables giving this soup a delicious deep flavour.