Japanese Stir Fried Udon Noodles (Yaki Udon) Using Shio Koji

I’m going to show you how to make Japanese stir fried udon noodles, or what we call “yaki udon” in Japanese. “Yaki” means fried or burned. So we are going to fry udon noodles until they are a bit burned. I make this all the time because it’s very easy and quick to make and very delicious. My mother used to make this when I was a child so this dish brings me back memories.

Japanese Stir Fried Udon Noodles (Yaki Udon) Using Shio Koji

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Sakura Yubi
Prep Time 15 minutes
Cook Time 15 minutes
Meat Marinating Time 1 day
Total Time 1 day 30 minutes
Cuisine Japanese
Course Main Course
Servings 1 servings


Shio-koji marinated pork slices

  • 150 g (1.1 cups) pork slices
  • 1 tbsp (1 tbsp) shio koji


For frying

  • 1 tbsp (2 tbsp) oil
  • 50 g (1.8 oz) carrot
  • 50 g (1.8 oz) shiitake mushroom
  • 100 g (1.4 cups) cabbage
  • 200 g fresh udon noodles




  • Marinate pork slices in shio koji for about 24 hours. This will soften the meat and bring out umami.
  • Let's prepare sauce. In a small bowl, add soy sauce, sake, water, and dashi powder. Mix well, and set aside.
  • Slice vegetables.

Stir Frying

  • Turn the heat to medium and add some oil on a pan.
  • We'll fry pork slices first. Use any pork slices you have on hand. Separate the meat slices on the pan and fry them until half way.
  • Now we add some of the veggies, the ones that take longer to cook. I'm adding carrot, shiitake mushroom and hard parts of cabbage. Use any vegetables you like. I also like to use bean sprouts instead of what I'm using today.
  • Now the veggies are cooked half way. Let's go ahead and add udon noodles. I'm using fresh udon noodles here.
  • Then add the sauce. The sauce will help separate the noodles faster.
  • Try to separate the noodles on the pan like this. If the sauce gets dried out too quickly, add some water.
  • Once the noodles are all separated, stir fry this on high heat. We want the sauce to dry out and burn a little bit on the noodles. This will create that nice charred soy sauce flavor.
  • Add the rest of the veggies now and keep stirring.
  • Check the taste and make final adjustments. I added some salt and pepper. Give it a final stir.
  • You see some of the noodles are a bit burned on the surface? That's what we want.
  • Serve the noodles on a plate and sprinkle some bonito flakes. They add some really nice fragrance and flavor.
    Okay it's done! Enjoy!

Recipe Notes


Serving: 1servingCalories: 956kcalCarbohydrates: 79.2gProtein: 47.5gFat: 48.9gSaturated Fat: 12.9gPolyunsaturated Fat: 6.9gMonounsaturated Fat: 23.1gTrans Fat: 0.1gCholesterol: 111.3mgSodium: 3045.9mgPotassium: 997.8mgFiber: 9.8gSugar: 14.5gVitamin A: 8461.5IUVitamin C: 40.6mgCalcium: 82.8mgIron: 2.6mg
Keyword koji salt, salt koji, shio koji, stir fried udon noodles, yaki udon
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