Chop the water spinach into finger length pieces
In a large wok, heat up some black sesame oil over medium heat
Sauté the garlic and red chilli until fragrant
While you're cooking the chilli and garlic, in a small mixing bowl, whisk all the sauce ingredients together. Set aside
Add the water spinach to the wok, and let it crackle for a few minutes. Sauté it around the wok and let it slightly sweat (not for too long or else it will turn soggy)
Add the sauce to the wok, and stir it in
Transfer the cooked water spinach over to a clean plate, once the stems are tender and bright green. Remember, you don't want to over-cook this.
Garnish with some crispy garlic and dried chilli
Serve with some freshly steamed rice