Jajangmyeon (Korean-Chinese Black Bean Noodles)
Why this recipe works
- Deeper black bean flavour: Briefly frying the black bean sauce before simmering softens its raw edge and gives the finished sauce a rounder, more savoury character.
- Rich but balanced: Rendered pork belly adds body and richness, while onion, courgette and cucumber keep the dish from feeling too heavy.
- Glossy sauce, chewy noodles: Cornflour thickens the sauce so it coats the noodles properly, creating the signature slick, spoonable texture.
Get the most out of this recipe
Ingredient notes
- About the black bean sauce: Korean jajang-style black bean sauce is salty, dark and concentrated, so it benefits from a short stir-fry before liquid is added.
- Choose chewy wheat noodles: Fresh or stir-fry wheat noodles give the best springy texture; cook them only until just tender so they can stand up to the thick sauce.
- Cut ingredients evenly: Small, even pieces of pork and vegetables help the sauce cook quickly and make it easier to mix through the noodles.
Common mistakes
- Letting the sauce get too thick: The sauce should be glossy and spoonable, not stiff. Add a splash of water if it tightens too much before serving.
- Adding cornflour without mixing: Whisk the cornflour with water first, then stir it into the simmering sauce to avoid lumps.
- Overcooking the noodles: Drain the noodles while they are still chewy and just tender, as soft noodles can become heavy under the sauce.
Ingredient swaps
- Use minced pork: Minced pork cooks more quickly than pork belly and gives a lighter, looser sauce.
- Swap in aubergine: Aubergine can replace courgette for a softer vegetable base that absorbs the black bean sauce well.
- Adjust the sesame finish: Toasted sesame oil adds nuttiness at the end; use a neutral oil instead if you prefer a milder finish.
Make-ahead tips
- Keep sauce and noodles separate: Store the black bean sauce separately from the noodles so the noodles do not absorb too much liquid.
- Reheat gently: Warm the sauce over low heat with a splash of water until piping hot, then serve with freshly cooked noodles.
- Freeze the sauce only: The sauce freezes well, but noodles are best cooked fresh for the right chewy texture.
Equipment you'll need
Ingredients
Instructions
- Julienne the cucumber and set it aside for serving. Dice the onion and courgette into small, even pieces, and finely chop the garlic. Cut the pork belly into small cubes.
- Heat the vegetable oil in a wok or large frying pan over medium-high heat. Add the pork belly and stir-fry for 5 to 7 minutes until lightly browned and some fat has rendered. Add the onion and cook for 3 minutes until starting to soften.
- Stir in the courgette and garlic and cook for 2 minutes until fragrant. Add the black bean sauce and stir-fry for 1 to 2 minutes to toast it slightly and deepen the flavour. Stir in the granulated sugar.
- Pour in 400 ml water and bring to a gentle simmer. Cook for 8 to 10 minutes, stirring occasionally, until the vegetables are tender and the sauce looks glossy. If it reduces too quickly, add a splash more water.
- Whisk the cornflour with the remaining 50 ml water until smooth. Stir it into the simmering sauce and cook for 1 to 2 minutes until thickened enough to coat the back of a spoon. Turn off the heat and stir in the toasted sesame oil.
- Bring a large pot of water to the boil and cook the stir-fry wheat noodle according to the packet instructions until chewy and just tender. Drain well, then divide between bowls. Spoon the black bean sauce over the noodles and finish with the cucumber.
Recipe notes
Tips
- Toast the black bean sauce briefly in the pan before adding water; it takes away any raw edge and makes the sauce taste deeper.
- Keep the simmer gentle after thickening with cornflour, and stir constantly for the first minute to prevent lumps.
- If serving to young children, cut the pork belly smaller and keep the sauce slightly looser by adding a splash of water before serving.
Substitutions
- Replace pork belly with minced pork for a lighter, quicker-cooking sauce.
- Replace courgette with aubergine for a more traditional, softer-textured vegetable base.
- Replace toasted sesame oil with vegetable oil if you prefer a milder finish.
Storage
- Refrigerate up to 3 days
- Store the sauce separately from the noodles in an airtight container. Reheat the sauce in a saucepan over low heat with a splash of water until piping hot; cook fresh noodles to serve. Freeze the sauce only for up to 2 months, then defrost overnight in the fridge before reheating.
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Recipe overview
- Servings: 3 servings
- Total time: 50min (40min active)
- Difficulty: Medium
- Cuisine: Korean
-
Allergens:
Gluten Sesame Soybeans Wheat
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