Homemade Steamed BBQ Roast Pork Bun/Char Siu Bao

Ingredients: Bao Dough: (10 nos,43g each Bao) 250g Low gluten wheat flour 7g Baking powder 40g Castor sugar 7g Dried active yeast A pinch Ammonia bicarbonate 1 drop Lye water 125ml Water 17g Solidified Vegetable oil Filling: 200g Char Siu 2 cloves Garlic 50g White onion 25g Spring onion 150ml Water 2tbsp Hoi Sin sauce 1tbsp Crushed Yellow Bean sauce 1/2tbsp Light soy sauce Few drops sesame oil 2.5tbsp Brown sugar 1.5tbsp Potato starch slurry Song credit to Audio Beat Official