I have been craving Twinkies for a couple of years now, but haven't been able to find a suitable gf substitute until now. Risotteria, my personal hub of gluten freedom in the city, has come to the rescue by creating their own version of Twinkies called 'Winkies'. For $5 you can get a cream filled sponge cake shaped like a Twinkie and that almost tastes like a Twinkie.
It's not filled with all of the preservatives and coloring that make Twinkies have that fake, sweet taste, which in my opinion makes it the better option. I devoured a package for lunch and then ordered another one the next time I got lunch from Risotteria. They are particularly tasty with coffee. If you ever find yourself in this neck of the woods I highly recommend picking some up!