Foreign tourists visiting Korea are always looking for interesting Korean products to take home. These days, one unexpected item is attracting attention: the yellow container of sweet sauce associated with Isaac Toast (이삭토스트).
Isaac Toast is one of Korea’s best-known toasted-sandwich chains with over 900 locations. Its sandwiches usually combine ingredients such as eggs, cabbage, cheese, ham, and a sweet signature sauce. The mixture of sweet and salty flavors is a good example of what Koreans call 단짠.
단짠 is a shortened combination of:
- 달다 — to be sweet
- 짜다 — to be salty
When sweet and salty flavors work especially well together, Koreans often describe the food as 단짠단짠.
이삭토스트는 단짠 맛으로 유명해요.
Isaac Toast is famous for its sweet-and-salty flavor.
Who—or What—is Isaac Toast?
Despite its English name, Isaac Toast is not a foreign company. It is a Korean toast franchise founded by Korean entrepreneur Kim Ha-kyung (김하경) in Cheongju, South Korea.
Kim began selling toast from a tiny shop in 1995. What started as a small local business eventually developed into a major Korean franchise with hundreds of locations in Korea and stores in several overseas markets.
The name Isaac (이삭) does not come from a foreign founder or celebrity. It comes from Isaac in the Bible, whose name is associated with laughter, joy, and happiness.
Kim Ha-kyung reportedly chose the name while helping a struggling Korean couple open a toast shop. That shop became the first Isaac Toast franchise location.
오늘의 표현: 쓸어 담다
The Korean expression 쓸어 담다 literally means “to sweep something into a container.”
However, it is frequently used figuratively when people buy or collect large quantities of something—especially a popular, inexpensive, or limited product.
Depending on the context, it can mean:
- to buy something in large quantities
- to grab everything available
- to stock up on something
- to clear something off the shelves
외국인 관광객들이 이삭토스트 소스를 쓸어 담고 있어요.
Foreign tourists are stocking up on Isaac Toast sauce.
세일이 시작되자 사람들이 화장품을 쓸어 담았어요.
When the sale began, people bought cosmetics in large quantities.
인기 상품이라서 손님들이 진열대에서 쓸어 갔어요.
It was so popular that customers cleared it from the shelves.
The related expression 쓸어 가다 is also common. While 쓸어 담다 emphasizes putting many items into your basket or cart, 쓸어 가다 emphasizes taking nearly everything away.
오늘의 단어
- 외국인 관광객 — foreign tourist
- 노란 통 — yellow container
- 정체 — true identity; what something really is
- 토종 브랜드 — homegrown or locally established brand
- 창업자 — founder
- 가맹점 — franchise location
- 시그니처 소스 — signature sauce
- 키위 소스 kiwi sauce
- 단짠 — sweet and salty
- 기념품 — souvenir
- 쓸어 담다 — to stock up on or buy in large quantities
- 불티나게 팔리다 — to sell like hotcakes
- 입소문이 나다 — to become popular through word of mouth
Isaac Toast may have an English name, but it is a distinctly Korean success story. Its popularity also shows how ordinary Korean foods—and even the sauces used to make them—can become memorable souvenirs for international visitors.
