Baked Barbecued Pork Buns

Ingredients

• 1 pkg dry active yeast
• 2 tsps baking powder
• 1 Tbsp corn oil
• 2 tsps cornstarch
• 1 egg
• 468 3/4 g / 3.75 cups flour plus extra
• 1 tsp fresh ginger
• 2 green onions
• 1 Tbsp hoisin sauce
• 244 ml / 1 cup milk heated
• 2 tsps oyster sauce
• 453.59 g / 1 pound diced cantonese barbecued pork
• 16 sqr parchment paper
• 1/2 tsps salt
• 1 tsp asian sesame oil
• 1 Tbsp dark soy sauce
• 1/2 tsps sugar
• 1 tsp sugar
• 3 Tbsps sugar
• 3 Tbsps vegetable oil
• 59.15 ml / 0.25 cup warm water
• 118.29 ml / 0.5 cup water
• 1 Tbsp water
• 1 small yellow diced onion