Isaac Toast

Isaac Toast (이삭토스트) is Korea's quintessential breakfast chain, founded in 1995 in Daehak-ro, Seoul. With 900-1,000+ locations nationwide and international stores in Southeast Asia, it became synonymous with Korean-style toast — a unique category unlike Western sandwiches. Cooked on a flat griddle with margarine for a crispy, slightly sweet exterior, each toast is layered with eggs, ham, cheese, and shredded cabbage, tied together by the signature sweet-tangy Isaac sauce. A full, filling breakfast costs under ₩4,000 (~$3 USD): Original Ham Special ₩3,200, Bulgogi Toast ₩3,500, Bacon Best ₩3,800. Watching the griddle cook layer ingredients is part of the theatrical experience. Most locations open 7-8 AM, perfect before sightseeing. Tourist-friendly locations include Myeongdong, Hongdae, and Insadong. Photo menus make ordering easy for non-Korean speakers. This is the affordable Korean breakfast tourists rave about.