Japchae - Korean Glass Noodle Stir-fry

Ingredients

• 250 gKorean sweet potato starch glass noodles
• 3eggs
• 1red pepper, sliced
• 1/2carrot, shredded
• 5shiitake mushrooms, sliced
• 1onion, sliced
• 3 clovesgarlic, minced
• 3 cupsspinach
• 0.5 tspsalt
• 1 tspsesame oil
• 5 tbspsoy sauce
• 2 tbspsesame oil
• 2 tbsphoney
• 1 tspblack pepper
• 1 tbsproasted sesame seeds

Instructions

1. 1

   Cook the noodles

   Cook the glass noodles according to the packet instructions. Drain and rinse them under cold water, then toss with 1 tbsp of sesame oil and set aside.

2. 2

   Cook the pepper

   Drizzle oil into a pan and sauté the red pepper for 2–3 minutes. Remove it from the pan and set aside.

3. 3

   Cook the mushrooms

   In the same pan, sauté the mushrooms for 1–2 minutes, then remove and set aside.

4. 4

   Cook the carrot

   Sauté the shredded carrot for 1–2 minutes, then remove it from the pan and set aside.

5. 5

   Cook onion and garlic

   Sauté the onion and garlic for 2–3 minutes, then remove them from the pan and set aside.

6. 6

   Season the spinach

   Blanch the spinach in hot water for 30 seconds, then transfer it to cold water. Squeeze out all the excess water, drizzle with 1 tsp sesame oil, season with 0.5 tsp salt and set aside.

7. 7

   Cook the eggs

   Whisk the eggs and season with salt and pepper. Drizzle a little oil into a non-stick pan and pour in the eggs to make a very thin layer. When set, roll it up and set aside; cook in batches if needed. Once cool, slice the egg into thin strips.

8. 8

   Mix the sauce

   In a bowl, combine the soy sauce, 2 tbsp sesame oil, honey, black pepper and roasted sesame seeds.

9. 9

   Combine and serve

   Pour half of the sauce over the noodles and mix well. Add all the vegetables and egg, pour over the remaining sauce and mix until thoroughly combined.

What is japchae?

Japchae is a Korean dish of glass noodles tossed with vegetables and a savoury-sweet seasoning. It is often served at celebrations and family meals, and can be enjoyed warm or at room temperature.

This version keeps the noodles and vegetables at the centre, with egg strips adding richness. Cooking the vegetables separately helps each one keep its colour and texture before everything is tossed together.

Nutrition and macros by portion

The nutrition label shows one serving as written: 433 calories, 9g protein, 73g carbs, 13g fat.

The noodles provide most of the carbohydrates, while sesame oil and egg contribute much of the fat; eggs, noodles and vegetables provide some protein. For a more balanced plate, serve a moderate portion with extra vegetables or a fresh side salad.

Choose the right noodles

Sweet potato starch noodles: These are the classic japchae-style noodles, with a chewy, springy texture. Follow the packet directions, as cooking times can vary between brands.

Cold rinse: Rinsing the cooked noodles stops them cooking further and removes excess surface starch. Tossing them with sesame oil helps keep them from clumping while you prepare the rest.

Cook the vegetables in batches

Separate pans or batches: The pepper, mushrooms, carrot, onion and garlic are cooked one after another in the same pan. Remove each batch as directed so the vegetables do not crowd the pan.

Keep the cooking brief: The vegetables should soften but still have some bite. A hot pan and short cooking times help avoid making them limp or watery.

Handle the spinach and egg

Spinach: Blanch it briefly, cool it in cold water and squeeze it well. Too much water left in the leaves can dilute the sauce once everything is mixed.

Egg strips: A thin layer cooks quickly and is easier to roll once set. Let the roll cool before slicing so it holds together more neatly.

Balance the sauce

Sweet and savoury: Soy sauce provides the salty, savoury base, while honey softens it with sweetness. Sesame oil and roasted sesame seeds bring a nutty aroma.

Add in stages: Tossing the noodles with half the sauce first lets them take on flavour before the vegetables and egg are added. Pour in the rest and mix thoroughly to coat everything.

Serve and time the meal

Japchae can be served as a main meal or alongside other Korean dishes. It pairs well with rice, kimchi or a simple fresh salad.

The listed total time is 35 minutes, including cooking the noodles and preparing the vegetables. Set out a bowl for each cooked ingredient so the final mixing step is quick and orderly.

Recipe notes & tips

• Prepare and slice all the vegetables before you start cooking.
• Use the same pan for the vegetable batches, removing each one as soon as it is cooked.
• Rinse the noodles under cold water after draining to stop them cooking further.
• Squeeze the blanched spinach firmly so it does not water down the sauce.
• Let the egg roll cool before slicing it into strips.
• Taste the noodles after mixing and adjust the seasoning to your preference.

Variations

• Add beef: Sauté thin strips separately until cooked through, then combine with the noodles and vegetables.
• Use another protein: Add cooked pork, chicken or tofu for a more substantial version.
• Swap the mushrooms: Use another sliced mushroom variety if shiitake is unavailable.
• Make it less sweet: Reduce the honey to suit your taste.
• Add more colour: Include sliced courgette or extra pepper, cooking each briefly in the pan.

Common mistakes to avoid

• Overcooking the noodles: Follow the packet timing and rinse them with cold water as soon as they are drained.
• Crowding the pan: Cook each vegetable in its own short batch so it sauté rather than steams.
• Wet spinach: Squeeze it thoroughly after cooling so excess water does not dilute the sauce.
• Thick egg layer: Pour in just enough egg to form a thin sheet, cooking in batches if necessary.
• Adding all the sauce at once: Coat the noodles with half first, then mix in the vegetables and remaining sauce.

How to store

Refrigerate leftovers in an airtight container for up to 3 days. Reheat gently in a pan or microwave until hot, adding a small splash of water if the noodles have stuck together.

Frequently asked questions