Cook the beans in simmering water for an hour and a half. Cook a whole chicken in lots of water, a whole garlic, an onion, ten tomatoes, a bay leaf, peppercorns, rosemary, oregano and salt. Debone the chicken, peel and mash the garlic, onion and tomatoes. Return everything to the pot, add the cooked beans, simmer for a few minutes and you've got yourself a great soup.