For the seitan: – ¾ cup vital wheat gluten – ¼ cup all-purpose flour – 1 teaspoon vegetable broth powder – ½ teaspoon onion powder – ½ teaspoon garlic powder – ¼ teaspoon salt – ⅔ cup water For the sauce (optional, see notes for other sauce ideas): – 3 tablespoons Thai sweet chili sauce – 3 tablespoons hoisin sauce – 2 tablespoons soy sauce – 2 tablespoons water – 1 tablespoon rice vinegar – ½ teaspoon sesame oil – 2 tablespoons light oil for frying, (such as canola or vegetable) – 1 tablespoon sesame seeds, for garnish – 1 small handful chopped green onions or chopped chives, for garnish