The roast beef sandwich also commonly comprises bread, cold roast beef (either the leftovers from a homemade dinner or deli meat), lettuce, tomatoes, and mustard, although it would not be uncommon to find cheese, horseradish, fresh/powdered chili pepper and even in some cases red onion. Roast beef sandwiches may be served hot or cold, and are sometimes served open faced. Some trace the origins of the modern (American-style) roast beef sandwich as far back as 1877, with the then little known "beefsteak toast" recipe: cold beef, bread and gravy dish. In 1900, the dish was described by "The Washington Post" as "unattractive" and as "a tired ark in a gravy flood". The dish gained popularity in the coming years and by 1931, some critics even went as far as to describe it as "a true taste of South Dakota". Roast beef sandwiches have been a specialty of the Boston area, in particular in the North Shore of Massachusetts, since the early 1950s, typically served very rare, thinly sliced (sometimes referred to as shaved) and piled on an onion roll. Restaurants specializing in it include Kelly's in Revere, Londi's in Peabody, King's of Salem, Hot Box of Somerville, Mike’s of Everett, Nick's of Beverly, Harrison's of North Andover, Land & Sea of Peabody, Bellas of North Andover, and Bill and Bob's of Peabody, Salem and Woburn. In Brooklyn a small handful of establishments, beginning with Brennan & Carr in 1938, have served a variant of the sandwich, and two more directly Boston-derived roast beef restaurants opened in the early 2010s. A modern variety of roast beef sandwich has become a staple in Eastern Massachusetts. Their most popular toppings are mayonnaise, barbecue sauce, and white American Cheese – individually, or in some combination of the three. The combination of the sauces is colloquially known as a "three-way." A horseradish cream sauce can also be added for extra tang/zest. Kelly's Roast Beef restaurant of Revere, Massachusetts, claims to have invented the sandwich in 1951. The beef on weck is a sandwich found primarily in Western New York. It is made with roast beef on a kummelweck roll topped with salt and caraway seeds. The meat on the sandwich is traditionally served rare, thin cut, with the top bun getting a dip "au jus" and topped with horseradish.