Authentic Cha Siu Bao Recipe Guangdong, China

Name: Chāshāo bāo Cha siu bao (Cha siu bao)
Prep time: 1 h
Cook time: 40 min
Yield: 10 servings
Cuisine: Chinese
Ingredients: DOUGH; 1 tsp active dry yeast; ¾ cup (180 ml) warm water; 2 cups (240g) all-purpose flour; 1 cup (120g) cornstarch; 5 tbsp sugar; 1/4 cup (60 ml) canola or vegetable oil; 2 1/2 tsp baking powder; 1-2 tsp water; FILLING; 1 tbsp oil; 1/3 cup (50g) shallots or red onion, finely chopped; 1 tbsp sugar; 1 tbsp light soy sauce; 1 1/2 tbsp oyster sauce; 2 tsp sesame oil; 2 tsp dark soy sauce; 1/2 cup (120 ml) chicken stock; 2 tbsp all-purpose flour; 1 1/2 cups (210g) diced Chinese roast pork