OK folks, Massachusetts is not known for BBQ, but we do have a regional sandwich to be proud of...the North Shore beef with sauce and mayo. Rare, fresh,thin-sliced top or steamship round piled high on a butter-grilled bun, and slathered with mayo and sweet, tangy "BBQ" sauce. Some people like 'em "three way" (sauce, mayo, american cheese) and some places will offer onion, horseradish, mustard. Harrison's in North Andover (used to be a Riley's in Lawrence , MA back in the 70's and 80's), the one I grew up with, has a "C.O.W." (Cheese-Onion-Works). For me, however, there is only one variation;EXTRA SAUCE, EXTRA MAYO, biggest they offer, preferably on an onion roll. In the Salem area try King's on North St., Supreme's in Danvers square, of course there is always Kelly's original since 1950 on Revere Beach. They are everywhere in the North Shore but hardly anywhere else, although they are similar to "pit beef" in Baltimore, MD area.