Jun 26

Hiyashi Miso Udon (Chilled Udon Noodles with Miso Sauce)

in Japanese, Main Course, Vegan

Hiyashi Miso Udon

During the summer in Japan when the weather is hot and humid, you will see lots of chilled dishes on menus.  One of those dishes is chilled noodles served with a variety of toppings.

5 Grain Udon and Yuzu Miso

When I was trying to decide what to make with all of the fun items in my Kokoro Cares Package,  I decided to use the 5 grain udon and the yuzu miso to whip up a hiyashi miso udon, or chilled udon noodles with a miso sauce.  If you are looking for something refreshing and light, this is it!  The yuzu miso combines the flavors of yuzu (a fragrant variety of citrus in Japan that tastes like a mix of mandarin orange and lemon) and miso paste.  If you don’t have access to yuzu miso, I have provided an alternative suggestion in the recipe.

Hiyashi Miso Udon

Hiyashi Miso Udon (Chilled Udon Noodles with Miso Sauce)

Chilled udon noodles topped with a sweet and savory miso sauce.  Perfect for a hot summer afternoon or evening meal.

Servings 2
Author Rachael Hutchings, www.lafujimama.com


  • 6 ounces uncooked udon noodles (or gluten-free noodles, if needed)
  • 1 cup finely chopped yellow onion
  • 1 tablespoon freshly grated ginger
  • 3 tablespoons yuzu miso*
  • 2 tablespoons soy sauce (or gluten-free tamari)
  • 2 tablespoons mirin
  • 2 teaspoons maple syrup (add 1 additional teaspoon if you like a sweeter sauce)
  • 1 small Japanese cucumber (or English cucumber with seeds removed), cut into matchsticks
  • toasted white sesame seeds (optional)


  1. Cook the udon noodles according to the package directions.  Then drain the water and rinse the noodles to remove any extra starch.  Put the noodles in a bowl of ice water to chill.

  2. Mix the onion, ginger, yuzu miso, soy sauce, mirin, and maple syrup together in a small saucepan.  Heat the sauce over medium heat.  Just as the sauce beings to boil, reduce the heat to maintain a simmer and let the sauce cook for 4 minutes, stirring occasionally. 

  3. Drain the noodles completely and divide them between two plates/bowls.  Top the noodles with cucumber matchsticks, then spoon the miso sauce over the top.  Garnish with toasted white sesame seeds, if desired.  Serve immediately.

Recipe Notes

*Yuzu Miso: If you do not have yuzu miso, you can substitute regular miso (white will be more mild and red/brown will be stronger) and add 1 tablespoon of marmalade to the sauce and a teaspoon of lemon zest.

{ 2 comments… read them below or add one }

free games June 14, 2023 at 8:20 pm

I am a big fan of Japanese cucumber


monkey mart July 8, 2023 at 8:12 pm

I love exploring refreshing dishes during the summer, and this Hiyashi Miso Udon seems like the perfect choice. The combination of chilled udon noodles and the sweet and savory miso sauce sounds delightful. I appreciate the alternative suggestion for yuzu miso, making it accessible to more people. Can’t wait to try it!


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