STEP 1
Cover the beans in 3 inches of cold water and allow to soften in the refrigerator overnight.
STEP 2
Next day, drain the beans. In an olla de hierra or 2-quart heavy bottom pot add the olive oil, onions and chorizo; cook over medium heat until onions soften and chorizo starts to brown, about 10 minutes. Add the beans, ham bone, guanciale and the liquid. Bring to a boil. Then reduce heat. Season with salt, pepper, paprika, bay leaves and thyme and simmer on moderately low heat, covered, for about 1 hour, or until the beans are just tender.
STEP 3
Remove the ham bone and add the potatoes and vegetables. Continue cooking for another 30 minutes.
Serve the soup in earthenware bowls with crusty bread and a bright, citrusy Albariño wine.