Add <quantity>12<unit>g</unit></quantity> of dry yeast to a bowl

Add <quantity>20<unit>g</unit></quantity> of sugar. Mix to dissolve and activate yeast

Add <quantity>100<unit>g</unit></quantity> of room temperature water. Stir to dissolve

Add <quantity>500<unit>g</unit></quantity> of all-purpose flour to a stand mixer bowl

Add <quantity>5<unit>g</unit></quantity> of baking powder

Add <quantity>20<unit>g</unit></quantity> of sugar

Add <quantity>12<unit>g</unit></quantity> of wheat starch

Mix to combine

Mix on low speed with the hook attachment. Add the yeast and sugar mix

Add <quantity>25<unit>g</unit></quantity> of cold condensed milk

Add <quantity>100<unit>g</unit></quantity> of cold milk

Mix the dough on medium speed for 6m until homogeneous

Add <quantity>½<unit>tbsp</unit></quantity> of salt. Mix on medium speed to incorporate it

Add <quantity>1<unit>tbsp</unit></quantity> of vegetable oil in a thin stream. Mix continuously to incorporate it

Continue mixing until the dough is is homogenous and elastic

Knead to form a ball

Transfer to a greased bowl and cover with a kitchen towel

Proof at room temperature for 30m until it doubles in size

Knead to form a ball

Divide into <quantity>80<unit>g</unit></quantity> balls. Cover with a kitchen towel

Roll out the dough until it is <quantity>5<unit>mm</unit></quantity> thick. Fold in 3 and pass it through a pasta sheeter. Repeat 7 times to strengthen the gluten

Cut the dough with a ring cutter

Stretch the dough into an oval shape

Rub the dough with vegetable oil

Mark the center of the dough with a chopstick and fold it in half

Transfer to a steaming basket and cover with a kitchen towel. Proof at room temperature for 30m until it doubles in size

Boil water in a pot for the steam basket

Place the steam basket with the bao buns over the pot. Cover and steam for 10m over low heat

Turn off the heat and keep the basket covered for 5m to finish cooking

Press the bao buns when they turn white in color and check if they spring back. The bao buns are ready

Stuff with your favorite braised meats or roasted mushroom mix!