How to make Cha Siu Bao, Chinese Steamed Barbecue Pork Buns, Cha Siu Baau, Char Siu Bao, Dim Sum recipe

Ingredients

• 1 tbsp. vegetable oil
• 3/4 cup (100 g) finely chopped yellow onion
• 1 green onion, finely chopped
• 1 tbsp. oyster sauce
• 1 1/2 tsp. soy sauce
• 4 tbsp. sake or sherry
• 3 tbsp. sugar
• 1 tsp. hoisin sauce
• 1 tsp. toasted sesame oil
• 2 tbsp. cornstarch
• 1/2 lb. (200 g) Chinese barbecued pork, diced
• 1 cup and 3 tbsp. (285 cc) lukewarm water
• 1 1/3 tsp. instant dry yeast
• 1 1/3 tsp. salt
• 3 tbsp. and 1 tsp. (40 g) sugar
• 4 cups and 3 tbsp. (500 g) cake flour
• 2 tsp. baking powder