Chiles Rellenos de Frijol con Salsa de Aguacate: Poblano Chiles Stuffed with Refried Beans Served with a Guacamole Sauce

Name: Chiles Rellenos de Frijol con Salsa de Aguacate: Poblano Chiles Stuffed with Refried Beans Served with a Guacamole Sauce
Ingredients: 1/4 cup vinegar; 1/2 cup vegetable oil; 1/2 teaspoon salt; 1/2 teaspoon freshly ground pepper; 6 poblano peppers (can be substituted with bell peppers); 1 1/2 cups black beans, washed and soaked overnight; 1 garlic clove, chopped; 1/4 cup vegetable oil or lard; 1 small onion, chopped; 2 large, ripe avocados; 5 ounces raw green tomatoes; 5 ounces sauteed green tomatoes; 1/4 onion, chopped; 1 garlic clove, minced; 1 handful cilantro; 2 green chiles, finely chopped; 1 cup cream, yogurt or creme fraiche; Salt and freshly ground black pepper