Add flour, water, yeast, sugar and oil to a mixing bowl and using a paddle attachment, blend together until a dough forms.

Continue kneading with a dough hook for about 6 minutes if using an electric mixer, or 10 minutes by hand. You want your dough to really get a good kneading and it should be very smooth and elastic.

Grease bowl and cover with plastic wrap and allow to rise for 1 hour or until doubled in size.

Divide dough into 8 balls then roll out thinly into round pieces.

Allow dough to rise again for 20 minutes.

Place each dough on it's own piece of parchment paper and cook in a steamer for 6 minutes each batch of bao. The dough will rise during this process so leave enough room for the dough to rise about 30% or so.

Remove from steamer and enjoy.