Recipe Ingredients

You’ll need the following ingredients to make this Natto Udon:

Udon noodles: I use frozen udon noodles in this recipe. Frozen ones may only need one minute of boiling time, making them quick and easy to use.
Natto: Use the attached sauce and karashi (Japanese mustard) as well.
Eggs: We are gonna make soft-boiled eggs.
Mentsuyu (noodle soup): I make it from scratch, which is super easy in this recipe, but you can also buy it at a store. Mentsuyu is made from dashi, which usually contains fish, so if you are vegan/vegetarian, you can substitute it with vegan dashi.
Toppings: Scallions and shredded nori.

Udon Noodles

Udon noodles, the classic Japanese noodle made with wheat flour and water, are a staple of Japanese cooking. These thick and white noodles have a chewy texture and can be enjoyed both hot and cold. Learn more about udon noodles in “What are Japanese udon noodles: A Beginner’s Guide“

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.

Juri Austin

Hi! I’m Juri, founder of Chef JA Cooks and the creator and photographer of this site. I’m here to guide you in authentic yet easy-to-follow Japanese recipes! Let’s explore the world of Japanese cuisine together!

Learn More About Juri

5 from 5 votes (2 ratings without comment)

5 Comments

Rosalyn says:

Jul 22, 2024 at 2:36 AM

Such an innovative way to try Natto! Very creative and elegant.

Reply
Rosalyn says:

Jul 22, 2024 at 2:36 AM

Such an innovative way to try Natto! Very creative and elegant

Reply
1. Juri Austin says:
  
  Jul 22, 2024 at 5:42 AM
  
  Thank you for your comment, Rosalyn! I’m glad you like the recipe!
  
  Reply
Philip Hees says:

Jun 6, 2023 at 11:12 AM

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.

Reply
1. JURI says:
  
  Jun 6, 2023 at 3:52 PM
  
  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!
  
  Reply