When Brown Sugar Cafe opened in Boston’s Fenway neighborhood in 1996, its sophisticated flavors quickly seduced many local students and residents. Now with a third location, the three comfortable eateries offer menus so extensive that diners have long lists of reasons to return. Brown Sugar’s chefs have a solid handle on the contrast of flavors that define Thai cuisine: Sweet, salty, spicy and sour notes fill most dishes, such as the na-tang (minced pork and shrimp with mint, coconut milk and crushed peanuts). Any of the chef’s many specialties, as well as deep-fried whole fish, are recommended. Beer and wine available. Serving lunch and dinner daily. Voted Best Thai Restaurant in The Phoenix's and Boston magazine's 2008 readers polls.