Boerum Hill’s most bodacious deli serves up killer smoked meats among other treats whose caloric content rivals a week’s worth of eating. This is Montreal Jewish fare, the stuff comfort food dreams are made of. Think of thin slices of corned beef piled high, topped with kraut and Russian dressing, blanketed in melted Swiss and wedged between toasted pumpernickel. Side dishes are as serious as the main ones, like that Canadian classic poutine, finished in a number of ways, including cheese curds, gravy, eggs, and even chicken schnitzel. Still hungry? They have hot dogs.The tiny space gets lots of traffic, so those who can’t find a seat along the counter or trio of communal tables can feast at home with takeout procured from the sidewalk window.