Maui Chicken

6 boneless, skinless chicken breast halves

1 can (14.5 ounce size) chicken broth

1 can (20 ounce size) pineapple chunks

1/4 cup vinegar

2 tablespoons packed brown sugar

2 teaspoons soy sauce

1 clove garlic, minced

1 medium green bell pepper, chopped

3 tablespoons cornstarch

1/4 cup water