Greens and Potato Soup with Chouriço

You’ll find this on every Portuguese menu and, like all potato-based soups, it is really easy to make, needing only an onion or so as the aromatic element. If the potatoes are flavourful, stock is unnecessary. Be sure to use floury rather than waxy varieties of potatos otherwise the result will be glutinous; those labelled as baking potatoes are ideal.