Natto, udon noodles, and egg, all combined in a bowl make a good meal. If you're interested in natto recipes, this natto udon noodle bowl is easy to start with.

Natto is fermented soybeans and sticky and slimy. It might look weird but it's well known as a healthy and nutritious food.
I love natto so much and this combo is one of my favorites.
Sticky natto and thick soft boiled eggs are mixed well with udon noodles, and the texture is smooth and nice!
- This recipe is for you, if:
- love You Japanese natto
- You love Japanese udon noodles
- You're looking for a natto recipe
- You want to know how to make a natto udon noodle bowl
How to make it is so easy! I will walk you through the steps, so let's get started!
By the way, if you want to know more about natto, you might like this natto over rice recipe.
About This Recipe
- Japanese natto recipe(fermented soybeans)
- Chilled Udon Noodles
- Easy recipe
📋 Ingredients
Here are the ingredients(amounts are in the recipe card below):

- Udon noodles: Udon is thick and chewy noodles made from flour. I use frozen ones.
- 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 (super easy though) in this recipe but you can also buy it at a store. And 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.
🔪Instructions
Let me walk you through how to make it. You can also watch this video.

- 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 (dashi, soy sauce, mirin, water) in a pot, bring it to a boil then turn the heat off.
- Boil udon noodles: Boil udon noodles according to the package, 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, and shredded nori on a plate, and pour mentsuyu over. You can also serve mentsuyu separately and pour it over right before eating.

There you go! It looks delicious, doesn't it??
If you prepare noodles and toppings while making soft-boiled eggs, it will be done in under 10 minutes!
I hope you like it.
Thanks For Stopping By
This natto udon noodle is quick and easy to make, so it's great for lunch and dinner on busy weekdays.
If you love natto and udon, this is the perfect recipe for you! I hope you try making it.
Please feel free to comment in the section below if you have a question!
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Chef JA Cooks is a Japanese food blog that shares simple and healthy Japanese home cooking recipes include vegan and vegetarian. From traditional Japanese recipes to modern recipes with step by step instructions.
Print
Chilled Natto Udon Noodle Bowl
- Prep Time: 5
- Cook Time: 10
- Total Time: 15 minutes
- Yield: 2 servings 1x
- Category: Noodle
- Method: Boil
- Cuisine: Japanese
- Diet: Low Fat
Description
Natto, udon noodles, and egg, all combined in a bowl make a good meal. If you're interested in natto recipes, this natto udon noodle bowl is easy to start with.
Ingredients
- 2 Udon noodles
- 2 pack Natto(100g) (Use the attached sauce and karashi as well)
- 2 Eggs
- 2 Scallions
- Some Shredded nori (optional)
Mentsuyu(noodle soup)
- 1 tsp Dashi powder
- 3 Tbsp Soy sauce
- 3 Tbsp Mirin
- 300ml Water
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 it to a boil then turn the heat off.
- Boil udon noodles: Boil udon noodles according to the package, 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, and shredded nori on a plate, and pour mentsuyu over.
Notes
- If your natto doesn't come with the sauce, you can substitute it with soy sauce.
- You can buy mentsuyu at a store.
Keywords: chilled natto udon noodle bowl
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