Good-Cooking - Adobo Pork with White Rice

Ingredients

• 1 onion, peeled, thinly sliced
• 3 cloves garlic, peeled
• 2 dried ancho chiles, toasted and seeded
• 1 negro chile, toasted and seeded
• 1 tomato, halved and toasted
• 1/2 cup distilled vinegar
• 1/2 cup chicken broth
• 1 teaspoon salt
• 1 (3 to 4 pound) pork roast or 6 to 8 pork chops
• 3 to 4 cups cooked white rice