How to Freeze Home Made Bao?

I am preparing filled bao at home tonight. I have made it before but now I am making a very large batch, and I want to freeze some for later. Would I steam all the bao and then freeze it and resteam or freeze what I want to save and then steam it for the first time when I want to eat it? Also should I thaw it before steaming/resteaming or can if be steamed from frozen?