Veracruzano Pudding Tamales with Chicken Chipotle and Herbs

Name: Veracruzano Pudding Tamales with Chicken, Chipotle, and Herbs
Ingredients: 1 large boneless, skinless chicken breast; Salt; 1 package fresh or frozen banana leaves; 20 dried chipotle or morita chiles, stems removed; 4 cloves garlic, unpeeled; 1/2 teaspoon sugar; 2 cups (1 pound) coarsely ground fresh masa for tamales; 5 cups chicken stock, preferably homemade; 1/2 cup (4 ounces) fresh pork lard or solid vegetable shortening; 3 large leaves fresh hoja santa or 30 sprigs fresh cilantro