Puerto Rican Black Beans. Frijoles Negros

Name: Puerto Rican Black Beans. Frijoles Negros
Cuisine: American, Latin American
Ingredients: 1 cup dried black beans (frijoles negros); 1 quart of water; 2 tablespoons adobo; 3 cloves garlic, minced; 1/2 yellow onion, peeled and small diced; 4 teaspoons of salt; 1/4 teaspoon whole dried oregano, crushed; 1/4 teaspoon ground black pepper; 1 tablespoon of sofrito; 2 bay leaves; 1/4 teaspoon ground cumin; 2 tablespoons dry wine, optional; 1 1/2 tablespoons vinegar, optional; 1/2 cup chopped onions