Go to Otto? Perhaps the olive oil coppetta? It's not your traditional ice cream sundae, though. You can sit at the bar and just order gelato.
DBGB has sundaes on the menu. Also not your traditional ice cream sundae, if that is what you seek. You can sit in the front room and just order dessert I believe.
Emack and Bolio might work as well. It's an ice cream shop chain, not a full blown sit down restaurant.
299 Bowery, New York, NY 10003
Wow, that's really helpful -- thanks a lot! We've had the olive oil gelato at Otto's -- it's amazing. We're having dinner elsewhere tonight, and just wanted a place to stop into for a quick sundae before the movie. I think Emack and Bolio's will be just the ticket. Thanks again!