This soup is made in the pressure cooker. It can either be completely vegetarian or you can add a ham bone or some chopped Serrano ham to make a meatier version.
200g white beans, soaked overnight
1 onion, finely chopped
1 red pepper, finely chopped
400g can of tomatoes
vegetable or chicken stock
Fry the onion in olive oil until soft in the pressure cooker. Add the red pepper and fry for another couple of minutes.
Add the beans and tomatoes and pour over the stock. Bring to the boil. Give it a final stir before closing the lid and bringing up to pressure. Cook for 30 minutes once the pan is at pressure.