Mushroom and Chicken Hot Pot

Name: Mushroom and Chicken Hot Pot
Ingredients: 1 ounce dried shiitake mushrooms, rinsed in cold water; 1 tablespoon canola oil; 3 garlic cloves, minced; 1/4 teaspoon crushed red pepper; 4 cups reduced-sodium canned chicken broth; 3 tablespoons soy sauce; 1 pound skinless, boneless chicken breasts; 1 small head (12 ounces) bok choy, white stems separated from leaves, thinly sliced; 1 red bell pepper, ribs and seeds removed, thinly sliced; 3 tablespoons rice vinegar; 2 teaspoons toasted sesame oil; 2 tablespoons cornstarch, dissolved in 1/4 cup water