All of the ice cream at Florian's. Have tried several and enjoyed them all. (earl gray/lavender, clotted cream, salted caramel blondie, sticky toffee pudding, etc) hubby likes soft serve (I don't,) and loves the butter beer softserve
Mango donut at Voodoo
Crepes get great reviews, haven't tried them yet tho
Dippin Dots--I know, not at all a Universal snack, but son loves them, and happy to find them there