Twenty-One Corner is a home-style stall that has been selling its signature koay teow soup for over a decade. Their koay teow soup is known for its clear broth, devoid of any greasy sensation. The koay teow noodles have a smooth and silky texture, just like traditional ones. The minced meat topping carries a slightly heavy flavor with a subtle hint of sweetness. In addition to the koay teow soup, they also sell authentic Johor otak-otak here.