Meat Lite: Sweet Potato and Chicken Enchiladas with Chile Sauce Recipe

Name: Meat Lite: Sweet Potato and Chicken Enchiladas with Chile Sauce Recipe
Ingredients: 3 dried guajillo chiles, stems and seeds removed; 3 dried ancho chiles, stems and seeds removed; 4 cups water; 1 medium onion, halved and sliced; 6 cloves garlic, divided; 2 tablespoons vegetable oil; 1 medium sweet potato, peeled and grated with a box grater or the shredder plate of a food processor; 1 teaspoon cider vinegar; 1/2 teaspoon salt; 8 ounces boneless skinless chicken breasts (about 2 small); 12 corn tortillas; 1/2 cup grated cheddar cheese; 4 green onions, thinly sliced; 1/2 cup cilantro, chopped; Sour cream