Method
- Heat 4 tbsp oil in a wok over medium-low heat. Add the chunjang and fry for 4 minutes, stirring constantly. The bitter raw paste must be tamed by frying in oil — undercooked chunjang ruins the dish. The colour should turn from grey-purple to glossy black.
- Set the fried chunjang aside in a bowl. In the same wok with the remaining oil, stir-fry pork belly cubes for 4 minutes until golden and the fat renders.
- Add ginger and garlic; fry 60 seconds. Add onion and stir 2 minutes. Add potato; stir-fry 3 minutes. Add zucchini and cabbage; stir 2 more minutes — vegetables should be just barely starting to soften.
- Return the fried chunjang to the wok. Stir vigorously to coat everything in the black paste. Add sugar and soy sauce.
- Pour in water or stock; the level should just cover the contents. Bring to a simmer for 6 minutes — the vegetables should be tender, the broth deeply black.
- Whisk the potato starch slurry; stream into the wok while stirring. The sauce thickens into a glossy black gravy in 30 seconds. Drizzle sesame oil. Boil noodles 4 minutes; drain. Pile in deep bowls, ladle the sauce generously over the top, scatter cucumber. Mix vigorously before eating; jjajangmyeon must be uniformly black, not striped.
Common questions
Can Jjajangmyeon be made ahead?
Jjajangmyeon is best made and eaten the same day, but the components can be prepped earlier — chop and measure the ingredients up to a day ahead, refrigerated separately. Final cooking takes about 25 minutes.
Is Jjajangmyeon spicy?
Jjajangmyeon as written is mild to mildly warming — the heat comes from aromatics rather than chili. Add fresh sliced chili or chili oil at the end if you'd like to push it spicier.
Is Jjajangmyeon vegetarian or gluten-free?
This recipe contains gluten via the soy sauce and/or noodles. To make it gluten-free, substitute tamari for soy sauce.
How hard is Jjajangmyeon to make at home?
Jjajangmyeon sits at intermediate difficulty — total time about 45 minutes. The ingredients are not unusual but the timing requires attention.
Can Jjajangmyeon be scaled up or down?
This recipe is written for 4 servings. To scale, multiply each ingredient proportionally; the cooking times stay the same up to about double the volume. Beyond that, expect to cook in batches because of pan size and heat distribution.
Cultural Note
Jjajangmyeon was created in 1905 in Incheon's Chinatown by Shandong Chinese immigrants who adapted zhajiangmian (北京炸酱面) to local tastes — sweeter, less salty, with the addition of caramel-like fried chunjang. The dish became inseparable from Korean takeout culture; ordering jjajang is the Korean equivalent of pizza-on-a-Friday. April 14 is informally Black Day, when single Koreans eat jjajangmyeon together in commiseration with their love-life status. The chunjang (Korean black bean paste) is sweeter and more caramelised than its Chinese ancestor.
