Where Do You Go for Authentic Irish Cuisine in Boston?

With St. Patrick's Day approaching, it's time for an open thread on Irish cuisine and drink. What's your favorite place in town for authentic Irish food? Do you agree with last year's collection of the best pints of Guinness in the area? And on the flip-side, where do you like to go for a not-so-authentic, "green beer"-style celebration? Share your thoughts by leaving a comment below or hitting up the tipline.
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