Hiyashi Chuka (Chilled Ramen with Soy and Vinegar Dressing)

Served cold with a sharp soy-and-vinegar dressing, hiyashi chuka is a Japanese ramen dish made for warm-weather eating. The noodles are cooked, rinsed until thoroughly chilled and arranged with colourful toppings such as crisp cucumber, ripe tomato, fine omelette ribbons and strips of ham. Rather than a hot broth, the flavour comes from the glossy dressing: savoury soy sauce, rice vinegar, a touch of sweetness and sesame oil for a nutty finish. It is refreshing but satisfying, with plenty of texture, and works well as a quick lunch or light supper when you want noodles that feel bright, clean and easy to assemble.
Cuisine style Japanese chilled noodle dish
Cooking style Minimal cleanup
Time commitment Under 30 minutes

Why this recipe works

  • Ready quickly: The noodles, omelette and dressing come together in a short, efficient sequence, making this practical for a fast lunch.
  • Bright, balanced dressing: Soy sauce brings savoury depth while rice vinegar and sugar create the sweet-sharp balance that defines the dish.
  • Fresh texture contrast: Cold noodles, crisp cucumber, juicy tomato, soft omelette and tender ham give each bowl a clean, varied bite.

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Timing notes

  • Serve straight away: Assemble just before serving so the noodles stay springy and the vegetables remain crisp.
  • Cool the noodles fully: Rinse the cooked noodles under cold running water until completely cool; lukewarm noodles will dull the refreshing character of the dish.

Texture tips

  • Drain thoroughly: Shake off excess water after rinsing the noodles, as trapped water will weaken the soy-vinegar dressing.
  • Keep the toppings neat: Use a ripe but firm tomato and slice the cucumber, ham and omelette finely so the toppings sit cleanly over the noodles.

Authenticity notes

  • A warm-weather favourite: Hiyashi chuka is widely associated with summer in Japan, when chilled noodles and sharp dressings are especially popular.
  • Dressing styles vary: A soy-and-vinegar dressing is a classic version; sesame-based dressings are also common for a richer, creamier style.

Equipment you'll need

Ingredients
Instructions
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  1. Beat the eggs with 1 tsp of the sesame oil until smooth. Warm a nonstick frying pan over medium heat, add a thin film of oil, then pour in the egg to make a thin omelette. Cook for 1 to 2 minutes until just set, flip briefly, then slide out to cool.
  2. Whisk the soy sauce, rice vinegar, caster sugar and the remaining 1 tsp sesame oil in a bowl until the sugar dissolves. Set aside at room temperature so the flavours meld while you prep the rest.
  3. Bring a large pot of water to the boil and cook the ramen noodles according to the packet until tender with a little bite. Drain in a colander, then rinse under cold running water until completely cool. Shake well to remove excess water.
  4. Cut the cucumber into fine matchsticks and slice the tomatoes into thin wedges. Slice the ham into thin strips. Roll the cooled omelette and slice into fine ribbons.
  5. Divide the chilled noodles between two bowls and arrange the cucumber, tomato, omelette and ham neatly over the top. Spoon over the dressing, then finish with the roasted sesame seeds. Serve straight away while cold.

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Recipe notes

Tips

  • Rinse the noodles thoroughly until they are cold, then drain well; excess water will dilute the dressing.
  • Keep the omelette thin and just set so it slices into neat ribbons without crumbling.
  • If serving to anyone vulnerable, use eggs that are within date and cook the omelette until fully set.

Substitutions

  • Replace rice vinegar with white vinegar for a sharper, less rounded tang.
  • Replace caster sugar with honey for a slightly richer sweetness.

Storage

  • Refrigerate up to 1 days
  • Best eaten freshly assembled. If needed, refrigerate the noodles and toppings separately from the dressing in airtight containers, then assemble cold; the noodles may firm up, so loosen with a small spoonful of the dressing before serving.

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Hiyashi Chuka (Chilled Ramen with Soy and Vinegar Dressing)
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Recipe overview

  • Servings: 2 servings
  • Total time: 25min (20min active)
  • Difficulty: Easy
  • Cuisine: Japanese
  • Allergens:
    Eggs Gluten Sesame Soybeans
Beginner friendly Kid friendly

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Equipment you'll need

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