ISO of Gua Bao Buns aka Taiwanese hamber buns in the grocery store

[Apple]

I am thinking of making eddie huang's chairman mao's beef bun and I can't seem to find the folded white buns needed for this dish.

I checked the fridge area of Cherry St. T&T where other white buns await hungry shoppers, but these are not the ones...

I do not want to make these from scratch... help a girl out. thanks