Mongolian Chicken (One Pot)

For chicken:

• 1 lb. chicken breasts cut into bite-size pieces
• ¼ teaspoon salt
• ½ black pepper
• 1 tablespoon cornstarch
• 3 tablespoon sesame oil
• 1 tablespoon garlic chopped
• ½ tablespoon ginger chopped
• 3-4 dried red chilies
• 2 bunches spring onions/green onions cut into 2-inch pieces
• 1 teaspoon cornstarch + 1 tablespoon water

For Sauce:

• 1 teaspoon sesame oil
• 2 tablespoons hoisin sauce
• 3 tablespoons dark soy sauce reduced sodium
• 2 tablespoons brown sugar
• ¼ cup of water