Preheat the oven to 180°C. Wash the potatoes thoroughly, wipe them and put them on a baking tray lined with baking paper. Bake for 45-50 minutes or until tender.
In the meantime, chop the chorizo into smaller pieces and fry using a dry frying pan. Remove the fried sausage from the pan and set it aside.
Add the finely chopped onion to the pan (with the chorizo fat) and simmer until the onion is soft and translucent. Pour the broth, add the tomato paste, sweet and smoked paprika. Stir until ingredients are combined.
Drain and rinse the beans. Add to the frying pan with prepared sauce. Using a wooden spoon mash some of the beans (about ⅓) to obtain a thick sauce. Add chorizo, season with salt and pepper to taste.
Cut the baked potatoes (as shown in the photos) and fill them with the prepared sauce. Serve sprinkled with grated cheese and fresh chives. Enjoy your meal!