Board Thread:General Discussion/@comment-4821842-20151119002821/@comment-24674051-20151119160406

Cora did not try to get Jefferson to make a magic hat. She just told Jefferson that it was up to him to make his own way out of Wonderland. Making the hat was for Jefferson, not Cora.

So, at least up to this point, Zelena has not met Cora. Maybe in the future she'll cast a time travel spell or something and get the opportunity.