2 cups cubed peeled sweet potatoes
2 tablespoons vegetable oil
1 pound skinless, boneless chicken breast halves – cubed
1 clove garlic, minced
6 tablespoons tamari soy sauce
3/4 cup water
3 tablespoons honey
3 tablespoons hot sauce, or to taste
1 ripe mango, peeled and cubed
1/4 teaspoon crushed red pepper flakes
1 teaspoon cornstarch
1 tablespoon warm water