I wonder if these can be frozen--either before or after baked...

You can also check out these Hotline threads for additional tips on freezing gougeres: http://food52.com/hotline/17505-when-i-make-a-batch-of-gougeres-and-drop-on-cookie-sheet-an-hour-prior-to-baking-should-i-put-in-fri & http://food52.com/hotline/17960-making-ahead-gougeres

Puffs freeze best after they are baked