In a Dutch oven, heat the oil over medium heat. Add the onions, garlic, and chile pepper. Cook stirring often, for seven minutes, or until light golden.
2
Stir in the beans, water salt pepper. Cover and bring to a boil over high heat. Reduce the heat to low and simmer, covered, for 30 minutes to blend the favors.
3
With a potato masher, nash the soup in the pot to a chunky, thick texture.