Japchae Korean Glass Noodles Tips

Featured in Explore Global Flavors and Dishes.

This legit Korean favorite comes with slippery sweet potato noodles, stir-fried thin beef, matchstick carrots, fresh spinach, and onion. Every piece gets a hit of sesame oil, brown sugar, and soy sauce so you taste sweet and savory in every bite. Don’t wanna use beef? Try chicken, tofu, or some shrimp. Cook every part on its own first, then mix them up so the noodles stay bouncy and every topping keeps its crunch. It’s good warm or after sitting for a bit, so it’s perfect for parties or meal prepping ahead.

Home Delicious Recipes
Updated on Tue, 27 May 2025 18:33:51 GMT
A bowl of Japchae with meat and vegetables. Pin it
A bowl of Japchae with meat and vegetables. | homedeliciousrecipes.com

Korean glass noodles called japchae are super lively and always get everyone grinning when I bring them to potlucks or set them out for the family. Those chewy noodles made from sweet potato soak up all the tasty sauce. Sliced beef and a rainbow of crisp veggies pack in tons of good flavors and fun textures. When I want cozy food that still feels fresh and bursting with veggies, I turn to this one.

The first time I put together japchae was for a buddy’s birthday party after catching it on a travel show. Now whenever we party, everyone wants seconds and the whole house smells incredible as it cooks.

Vibrant Ingredients

  • Brown sugar: Brings just enough mellow sweetness Grab the soft kind, not the dried out bits
  • Soy sauce: This gives that awesome salty umami flavor Use tamari for a gluten-free fix, or snag a good Korean or Japanese bottle if you can
  • Olive oil: Great for sautéing your veggies and stops the noodles from sticking Go with something neutral-tasting
  • Sesame oil: For that signature nutty punch Toasted Korean-style is best if you've got it
  • Garlic: Delivers the bold aroma Korean food's known for Plump fresh cloves work best
  • Spinach: Gives a pop of color and tender texture Reach for baby spinach with deep green leaves
  • Green onions: Lively and bright Pick ones with vivid dark tops
  • Carrots and white onion: Sweet and crunchy Don’t skip these—find firm, heavy ones
  • Korean glass noodles (sweet potato): The clear, bouncy noodles that set japchae apart Look for even, unbroken noodles at most Asian grocers
  • Thin beef slices: Plump up the meal Make it with nicely marbled beef, or try tofu, shrimp, or even chicken for a twist

Simple How-To Steps

Finish and Garnish:
Warm everything up once mixed, just until heated through. Pile on extra green onions for color and serve it up warm or even cooler for picnics.
Mix It All:
Dump your drained noodles in a roomy bowl. Add all your beef, veggies, and wilted spinach. Get in there with tongs (or gloved hands) and toss until the sauce coats every part.
Quickly Wilt Spinach:
Pop the spinach into your skillet. Give it a stir until the leaves just fold and turn a deep green. Don’t wait too long—they should stay tender, not mushy.
Cook the Veggies:
In a fresh pan with olive oil over pretty hot heat, toss in carrots and onion strips. Cook until they’re just soft, about three to four minutes. Drop in the garlic and green onions, then coat it all in the last bit of soy, sesame oil, and brown sugar. Two more minutes makes it glossy and fragrant.
Sear Your Protein:
Crank up a skillet until very hot, drop in the beef slices, and spread them out so they all hit the heat. Shake on half your soy sauce, brown sugar, and sesame oil. Move them around until the edges brown fast, then scoop out onto a plate for now.
Boil the Noodles:
Get a big pot of water bubbling with a splash of olive oil. Toss in glass noodles and cook five to six minutes ‘til they’re chewy but still have bounce. Drain super thoroughly so the noodles don’t water down your flavors and set aside.
A bowl packed with meat and veggies on glass noodles. Pin it
A bowl packed with meat and veggies on glass noodles. | homedeliciousrecipes.com

The chew of these noodles might be my top favorite part. They slurp up all the sauce and stay bouncy. My kids always argue for the last carrot and beef bits, which honestly makes this dish pure fun at my table. I once made japchae just to jazz up a quiet Sunday and we wound up turning it into a mini party. I keep coming back to this one for that happy memory.

Storing Leftovers

Japchae lasts nicely in a sealed container in the fridge for up to three days. Since the noodles are sturdy, they won’t fall apart when reheated. Just a quick toss in a hot pan or a zap in the microwave brings everything right back to life.

Easy Swaps

If you’re not into beef, use thin chicken, tofu, or shrimp instead. Other stir fry veggies like red bell peppers, zucchini, or mushrooms work great too. For gluten-free, switch out the soy for tamari.

How to Serve

Japchae can be the main event hot or cold. Try serving it next to some crispy kimchi or vinegary pickled radish for a real Korean vibe. Want crunch? Bundle it in fresh lettuce leaves.

A bowl packed with meat and veggies on glass noodles. Pin it
A bowl packed with meat and veggies on glass noodles. | homedeliciousrecipes.com

Cultural Backstory

Japchae goes way back in Korean food history. Once it was something only royalty got to enjoy. Now you’ll see it at special get-togethers like birthdays or Lunar New Year—it always brings a sense of celebration to the table.

Frequently Asked Questions

→ Why do glass noodles turn out chewy in japchae?

Only Korean sweet potato noodles bring that signature bounce. Cooking them till they’re just right helps them stay springy.

→ Is it possible to swap out the protein in japchae?

Totally! You can toss in chicken, swap for tofu, or even try shrimp—whatever fits how you like to eat.

→ Should japchae get served hot, or is it cool too?

Either way works! You can have japchae right off the stove, or let it cool down—great for sharing or meal prepping lunches.

→ Any tips to keep the veggies from getting soft in japchae?

Crank up the heat and cook veggies quick, so they get just a bit soft but still snap when you bite ‘em.

→ Which sauce mix is the secret behind japchae’s taste?

It’s really about soy sauce, some sesame oil, and a little brown sugar fighting for the top spot—salty, sweet, and nutty all at once.

→ Is there a gluten-free way to make japchae?

Yep, swap regular soy sauce out for tamari or check your noodles and sauces to keep things gluten-free.

Japchae Korean Glass Noodles

Colorful veggies, beef, and chewy noodles all come together in a tasty soy-sesame combo, a classic from Korea.

Prep Time
25 Minutes
Cook Time
25 Minutes
Total Time
50 Minutes

Category: World Cuisine

Difficulty: Intermediate

Cuisine: Korean

Yield: 6 Servings (Feeds 6 people)

Dietary: Dairy-Free

Ingredients

→ Protein

01 900 g of beef sliced thin (or swap for tofu, shrimp, or chicken if you like something else)

→ Noodles

02 450 g Korean glass noodles made from sweet potato

→ Vegetables

03 225 g of spinach leaves
04 1/2 bunch green onions, chopped up
05 1 large white onion, sliced thin
06 3 carrots, cut into thin strips

→ Aromatics and Oils

07 4 tablespoons sesame oil, use it in parts
08 1 tablespoon olive oil
09 6 garlic cloves, crushed or minced

→ Seasoning

10 3 tablespoons brown sugar
11 6 tablespoons soy sauce (tamari is fine for gluten-free)

Instructions

Step 01

Before you dish it up, heat the noodle mix for a minute or two. Sprinkle some extra green onions if you want.

Step 02

Toss the noodles you set aside into a big bowl with the beef, all the veggies, and spinach. Mix it really well so everything gets coated with the tasty sauce.

Step 03

Throw the spinach into your pan with the veggies. Stir it for a few seconds just until it softens up.

Step 04

Heat up olive oil in another pan, then add the carrots and onions and cook a few minutes until they get soft. Put in garlic and green onions next, and let them cook for about a minute. Then add the rest of the soy sauce, sesame oil, and brown sugar. Give it all a stir.

Step 05

Get a skillet hot and toss in your beef slices. Stir them around till they're brown, then pour in half the soy sauce, half the sesame oil, and half the brown sugar. Remove from heat and keep them aside.

Step 06

Fill a big pot with water and let it boil. Drizzle in olive oil. Drop in the sweet potato noodles and cook 5-6 minutes until just soft, still a bit chewy. Drain well and leave them off to the side.

Notes

  1. Japchae works hot or at room temp—it’s easy to make your own by switching up proteins and what veggies you have lying around.

Tools You'll Need

  • Mixing bowl
  • Large pot
  • Two big skillets
  • Strainer

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Has soy (soy sauce or tamari inside)
  • Has gluten if you use regular soy sauce—swap for tamari to go gluten-free

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 420
  • Total Fat: 10 g
  • Total Carbohydrate: 62 g
  • Protein: 22 g