Kangkong in Oyster Sauce Recipe

Name: Kangkong in Oyster Sauce Recipe
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Asian
Ingredients: 1 bunch kangkong (Ongchoy or water spinach, cleaned); 3 tablespoons oyster sauce; 3 tablespoons toasted garlic; ¾ cup beef broth; ½ teaspoon cornstarch; Salt and ground black pepper to taste; ¼ teaspoon red pepper flakes (optional); 1 teaspoon toasted sesame seeds (optional); 2 tablespoons cooking oil