A method of preparing
Soak the bean in cold water and leave for few hours. Peel and dice the vegetables. In the pot, boil 3 cups of salted water, put the vegetables and drained beans and cook for about 20 minutes. Dice the onion, and slice sausage. Sausage has to be drowned in a pan, than add onion, fry and put into the pot of beans. From the flour and fat make a roux, pour it into the pot and stir properly. Add tomato puree, season to taste with salt, pepper, paprika and marjoram. Cook the beans for 7 more minutes, until excess of water has evaporated.