I discovered a tasty new treat at the Japanese Cafe Zaiya on East 41st Street. Many of their baked goods are pre-wrapped, making them sweaty and ruining their texture. Lately they've been selling what they call sweet potato pie. It's actually a delicately frosted popover filled with a chunk of buttery soft satsuma-imo for only a 1.35 (it might be priced higher during the midday.) They're very good when fresh. Their other non-wrapped items excel as well such as their taro stuffed sesame balls and even their steamed buns have also been better than I've remembered in the past.
I've only been finding these items after 4pm or so when the whole place goes on an unadvertised super sale. Among a myriad of other things you can get affordable trays of unagi over rice, cold roasted fish and chicken, a huge tin of bread pudding, sushi or lots of other appealing fried Japanese treats. It's a great way to sample all of their wares affordably. I had a Japanese ground turkey and tofu item that was one part salisbury steak and one part lions head that was quite filling with fried rice and vegetables for 4 dollars. It made for a filling meal on a rainy day after checking out the New York Eats Out exhibit at the NYPL.