| Soak the beans overnight (about 8 hr) in cold water to cover by 2 in, then drain and rinse |
| 1 lb dried black beans, soaked and drained | simmer uncovered 1 1/2 to 2 hr until tender, adding water only to keep the beans barely covered | stir together, simmer uncovered 15 to 20 min |
| 6 cups water, to cover by 1 in, plus more as needed |
| 2 bay leaves |
| 1/4 cup olive oil | cook until soft, 8 to 10 min | stir in, cook 1 min |
| 1 medium onion, chopped |
| 1 medium green bell pepper, chopped |
| 4 cloves garlic, minced |
| 1 Tbsp ground cumin |
| 1 tsp dried oregano |
| 2 tsp salt, plus more to taste |
| 2 Tbsp red wine vinegar |