Soak the beans: Add enough water to cover the beans and soak overnight, or at least a couple of hours.Remove the water and rinse the beans.
Boil the beans: Add enough water to cover the beans and boil until very soft, adding water as needed to maintain the same level.It may take an hour or more in a regular pot, and up to 20 minutes in a pressure cooker. Separate the beans from the boiling water. Reserve both.
Sautee: Heat 3 tablespoons of oil over low heat. Add the chorizo, potatoes, thyme, garlic, onion, bell pepper, and carrot.Cook stirring until the onions become translucent (3 to 5 minutes).
Cook beans: Add the beans, raise the heat to medium and cook while stirring for one minute. Add the water in which the beans were boiled, if it is less than 1 liter add fresh water.Cook over medium heat until the vegetables are soft. Season with salt and pepper to taste.
Serve: Remove from heat and serve with white rice.
Notes
Judías in the Dominican Rep. are white beans, while in Spain it is the generic word for all beans. In English they may be known as Cannellini beans.