I recently bought some fresh "pork and Chinese-sausage filled" steamed buns from a supermarket. The supermarket also sells fresh, pre-cooked Taro and egg custard filled buns, which are kept next to the pork-filled buns in the refrigerated section and which I have bought before.
It didn't occur to me until I went to eat them today that the pork-filled buns may need to be cooked. While the dough part of the bun had the light and fluffy consistency of a bun that had already been steamed, the filling was a light pink color (not the darker color I see when I simply Google images of "pork-filled buns").
I'm currently out of state, and the supermarket doesn't appear to have a phone number. How can I tell if these are pre-cooked, or if they are meant to be cooked? I've never cooked buns, and don't really know what I'm doing here. I tried cooking one in the microwave (I don't currently have access to much more) according to some online instructions which suggested wrapping the bun in a moist paper towel and heating it for 6-8 minutes, however the result was rock-hard (and a darker center).