Sherry Y.
Yelp
Quaint little bakery near Allston. Make sure you do a bit of research before reaching the counter because for whatever reason, they don't display a menu. Unless you are a fan of the point-and-ask, I would figure out what the basic Brazilian bakery bites are and, based on the flavor profiles, what you might be a fan of.
Their pao de queijo is absolutely phenomenal AND comes in both grande and pequeno sizes. Prices are relatively reasonable for pastries but the smoothies, in particular the Acai one, are ridiculously priced at $9+ a cup! So, I suggest you stick to a plain coffee if you need a beverage here. I highly recommend the stuffed chicken grande pao de queijo and make sure to order more than one - you'll need one for the road.
My only real criticisms remain in the staff's ability to crowd control and the cleanliness of the place. Not a huge deal, but some customers do just leave their trash on the tables instead of cleaning it up, so you might have to do some recon work in order to snag a table. The staff is also super busy, so they might be simultaneously on the phone while attempting to take your order, causing a line to snake down the middle of the store. Not a huge deal, but it may be difficult if you're not familiar with Brazilian pastry items.