The key to Japchae is that it is a stir-fry dish made by cutting any ingredients long, frying them until they are dry, mixing them with boiled glass noodles, and seasoning them with soy sauce.
Japchae means a food mixed with various vegetables. The modern form of japchae containing glass noodles began when the first glass noodle factory opened in Sariwon, Hwanghae Province in 1919 during the Japanese colonial period, and it is said that it began to be eaten in earnest after 1930.
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