Spicy Chicken Chili

Name: Spicy Chicken Chili
Ingredients: 2 tablespoons cooking oil; 1 onion, chopped; 2 cloves garlic, minced; 1 pound skinless chicken thighs (about 4), cut into thin strips; 4 teaspoons chili powder; 1 tablespoon ground cumin; 2 teaspoons dried oregano; 1 teaspoon salt; 2 jalapeño peppers, seeds and ribs removed, chopped; 1 1/2 cups canned crushed tomatoes with their juice; 2 1/2 cups canned low-sodium chicken broth or homemade stock; 1 2/3 cups drained and rinsed pinto beans (from one 15-ounce can); 1 2/3 cups drained and rinsed black beans (from one 15-ounce can); 1/2 teaspoon fresh-ground black pepper; 1/3 cup chopped cilantro (optional)