Chilled Natto Udon Noodle Bowl
If you’re looking for cold udon recipes with natto, try our favorite Natto Udon Noodle Bowl!
Looking for easy udon recipes? Try my Bukkake Udon, Miso Udon Carbonara, or Zaru Udon!

Why You Will Love This Recipe
Recipe Ingredients
Youโll need the following ingredients to make this Natto Udon:

How To Make Natto Udon: STEP BY STEP
Here are some quick visual instructions! For the video and all the detailed ingredients and instructions, go to the printable recipe card below.

Step 1
Chop scallions finely.

Step 2
Make soft-boiled eggs.

Step 3
Boil udon noodles.

Step 4
Mix natto and the natto sauce.

Place udon noodles, natto, scallions, a soft-boiled egg, and shredded nori on a plate and pour mentsuyu over them.

Want More Plant-Based Ideas?
Download 10 Vegetarian Recipes

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Leave a Rating!
I hope you enjoy this Natto Udon! If you try it, don’t forget to leave a rating to share your thoughtsโI love hearing from you!
Chilled Natto Udon Noodle Bowl

Ingredients
Instructions
- Chop scallions: Chop scallion into small pieces.
- Make soft-boiled eggs: Boil water in a small pot, turn off the heat, put eggs, and leave for 10 minutes with the lid on.
- Make mentsuyu: Put all the mentsuyu ingredients in a pot, bring to a boil, then turn the heat off.
- Boil udon noodles: Boil udon noodles for one minute (if it's frozen udon noodles). Rinse under running water, and drain the water.
- Mix natto: Mix natto, natto sauce, and karashi(Japanese mustard) together.
- Serve: Place udon noodles, natto, scallions, soft boiled egg, shredded nori on a plate, and pour mentsuyu over.
Video

Notes
- If your natto doesn’t come with the sauce, you can substitute it with soy sauce.
- You can buy mentsuyu at a store.
Nutrition
This nutritional information is estimated and provided for general reference only.
Such an innovative way to try Natto! Very creative and elegant.
Such an innovative way to try Natto! Very creative and elegant
Thank you for your comment, Rosalyn! I’m glad you like the recipe!
I enjoyed this recipe! But there is a small mistake in the instructions. 10 minutes for the eggs will result in hard boiled eggs, not soft boiled.
Hi Philip! Thank you for trying my favorite natto noodle recipe! I apologize for not clarifying to turn off the heat in the instructions, but I have added that now. If you turn off the heat and place the eggs in boiled water, letting them sit, they will turn out as soft-boiled eggs. I hope you have the opportunity to try it again!