A two-room restaurant across from Boston City Hall is a longtime-Irish pub location, as the original oval-shaped bar will attest. The space was reborn in 2022 as The Dubliner, an example of the genre worthy of the well-touristed spot. Chef Aidan Mc Gee, who grew up on a Donegal farm, is new to Boston after two decades in London fine-dining. At The Dubliner, he showcases the best of New England-by-way-of-the Isles, with refined yet authentic comfort food such as Slow Cooked Beef Cheek with mashed potato, confit carrots, and crispy shallots; and an exquisite version of Dayboat Fish and Chips served with curry for dipping the wedges, peas, and an herbaceous tartar sauce. The comfortable space has been spruced up with plush vinyl booths and a new soundsystem for frequent live music performances.