Kimchi Noodles
(김치 볶음 국수)
8 Noodle Types Tested — Butter vs Oil Settled — Hot & Cold Versions
The most complete, easy kimchi noodles guide — the best kimchi noodle recipe tested across 8 types. Spicy kimchi noodles stir-fry, cold bibim guksu, kimchi noodle soup, and instant ramen versions. Butter beats oil. Never drain the juice. Tested.
Kimchi noodles are a Korean-inspired dish — aged kimchi stir-fried with noodles, kimchi juice, gochujang, and butter in a single pan. They take 15 minutes, use pantry staples, and produce a deep sour-spicy-umami flavour that instant ramen can never replicate. The dish exists in two forms: hot stir-fried noodles (kimchi bokkeum guksu) and cold mixed noodles (kimchi bibim guksu). Both are on this page.
The 4 Mistakes Every Other Site Makes
How Hard Is This Recipe?
One pan, 15 minutes. The only technique is caramelising kimchi in butter before adding noodles.
Fermentation Stage Guide for Noodles
Hot stir-fry noodles need Stage 3 ripe kimchi — same as jjigae and fried rice. Cold noodles work better with Stage 2.
What You Need (serves 2)
Tested Ingredient Swaps
| Ingredient | Vegan Swap | GF Swap | Budget Swap | Impact |
|---|---|---|---|---|
| Unsalted butter | Vegan butter (same amount) | Same | Vegetable oil (loses Maillard depth) | ★★★★☆Vegan butter works well. Oil is noticeably flatter. |
| Udon noodles | Rice noodles (vegan) | Rice noodles or GF ramen | Instant ramen (discard flavour packet) | ★★★★★All noodles work — see selector above for specifics |
| Gochujang | Check label — most are vegan | Use GF brand gochujang | Gochugaru + ½ tsp miso paste | ★★★☆☆Loses paste depth. Acceptable in emergency. |
| Kimchi juice | From vegan kimchi jar | Same | 1 tbsp rice vinegar + 1 tsp soy | ★★★☆☆Adds sourness but not fermented complexity. |
| Fried egg (topping) | Crispy marinated tofu | Same | Skip — noodles complete without | ★★★★☆Runny yolk is the best version. Tofu is a good second. |
Step-by-Step Method
Cook noodles 1 minute less than the package instructions — they will finish cooking in the sauce. Before draining, scoop out ¼ cup of the starchy cooking water and set aside. Do not rinse the noodles after draining — the surface starch helps the sauce cling to every strand.
In a small bowl, mix kimchi juice, gochujang, soy sauce, and sugar. Whisk until the gochujang is fully dissolved — no lumps. Set aside. This pre-mixing step means you can add the sauce in one move during cooking rather than adding ingredients one by one and losing control of timing.
Melt butter in a large pan or wok over medium-high heat. Add garlic and stir 30 seconds — just until fragrant, not browned. Add chopped kimchi. Stir-fry for 3–4 minutes. The butter will begin to brown slightly at the edges — this is the Maillard reaction and exactly what you want. The kimchi will darken, shrink, and smell intensely sour-sweet.
Add noodles to the pan. Pour sauce over. Toss vigorously with tongs or two spoons for 2 minutes — every noodle should be coated deep red. If the sauce is too thick or noodles stick, add noodle water in 2-tablespoon splashes. You want the sauce to coat the noodles without pooling at the bottom of the pan.
Remove from heat. Drizzle sesame oil over the noodles. Scatter spring onion greens. In a separate pan, fry eggs sunny-side up — the runny yolk becomes a second sauce when broken over the noodles. Serve immediately — kimchi noodles do not improve with sitting.
Stage 3 kimchi, butter, kimchi juice sauce, noodle water technique. 15 minutes. Fried egg topping essential.
- 200g udon noodles
- ¼ cup noodle cooking water (reserved)
- 1 cup aged kimchi (Stage 3), chopped
- 4 tbsp kimchi juice (NEVER drain)
- 2 tbsp unsalted butter
- 3 cloves garlic, minced
- 1 tbsp gochujang
- 1 tbsp soy sauce + 1 tsp sugar
- 1 tsp sesame oil (off heat)
- 2 spring onions + 2 fried eggs
- Cook noodles 1 min less than package. Save ¼ cup water. Drain but do NOT rinse.
- Mix kimchi juice + gochujang + soy + sugar in bowl. Set aside.
- Melt butter medium-high. Add garlic 30 sec. Add kimchi. Stir-fry 3–4 min until caramelised.
- Add noodles + sauce. Toss 2 min. Add noodle water in splashes if sauce too thick.
- Off heat: sesame oil + spring onion. Top with runny fried egg. Serve immediately.
Every Kimchi Noodle Version — Tested
Same kimchi — completely different dishes. Each version listed with exact changes from the base recipe.
- Use thin wheat noodles or soba — not udon
- No cooking after noodles are boiled — cold dish
- No butter. Mix kimchi juice + gochujang + sesame oil cold.
- Toss noodles with kimchi and cold sauce by hand. Serve chilled.
- Top with cucumber strips, sesame seeds, soft-boiled egg
- After caramelising kimchi (Step 3), add 2 cups hot broth
- Simmer 5 min. Add uncooked thin noodles directly into broth.
- Cook until noodles done — no separate noodle pot
- No need for noodle water — broth is the liquid
- Instant ramen noodles — discard flavour sachet completely
- Cook noodles 1 min only (they finish fast)
- Everything else identical — same butter, kimchi, sauce
- Add 1 extra tsp gochujang — ramen noodles are very mild
- 150g thinly sliced pork belly — cook first, no butter
- Use rendered pork fat as cooking medium instead of butter
- Add garlic and kimchi to the fat after pork is done
- Reduce soy sauce by half — pork adds salt
- Use vegan butter — same technique, same Maillard effect
- Use vegan kimchi only (no fish sauce)
- Pan-fry firm tofu cubes in soy sauce. Use as egg replacement.
- Add 1 tsp miso to sauce for extra umami depth
- After Step 4, reduce heat to low
- Scatter 40g shredded mozzarella over noodles
- Cover pan with lid for 60 seconds to melt
- Serve immediately — cheese sets quickly
Kimchi Noodle Pairing Guide
How Long Do Kimchi Noodles Last?
Kimchi noodles are best eaten immediately — they do not improve overnight like jjigae. But leftovers reheat well with the right technique.
Are Kimchi Noodles Healthy?
Easy kimchi noodles are a moderately nutritious Korean weeknight meal. At 480 calories, they are similar in energy to a bowl of pasta. The aged kimchi provides live probiotics (Lactobacillus) that support gut health and immunity. The fried egg adds 6g extra protein and a full range of fat-soluble vitamins.
The main consideration is sodium — at 1020mg per serving, primarily from kimchi, soy sauce, and gochujang. For a lower-sodium version: use low-sodium soy sauce and reduce kimchi juice to 2 tbsp. For a lower-calorie version: swap udon for shirataki or glass noodles (~220 calories) and use olive oil instead of butter.