Lin Dong Fang Chili Sauce
There are a lot of beef noodle restaurants in Taipei, one famous spot is called Lin Dong Fang, which is Michelin-approved.
Their chili sauce is basically a pure magic. It adds a nice kick to the noodle soup, a very toasty and rich flavour.
It can give your food a bit of heat, and a smokey dry chili kind of flavor, which is fantastic.