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dipping cold udon noodles in mentsuyu (noodle dipping sauce) mixed with green onions

Zaru Udon (Cold Udon with Homemade Dipping Sauce)

4.75 from 4 votes
https://sudachirecipes.com

There's nothing more refreshing than Zaru Udon served with a delicious chilled Mentsuyu sauce to cool you down on a hot summer's day. This recipe is quick and easy to make, not to mention highly customizable! It also goes great with Tempura!

Prep Time5 minutes
Cook Time5 minutes
Chilling time10 minutes
Total Time20 minutes

Course Dinner, Lunch, Main Course, Sides
Cuisine Japanese
Servings 2 portions
Prep Time: 5 minutes
Cook Time: 5 minutes
Chilling time: 10 minutes
Total Time: 20 minutes

Course: Dinner, Lunch, Main Course, Sides
Cuisine: Japanese
Servings: 2 portions

Ingredients 
 

Additions

  • 1 tsp wasabi paste
  • 1 tsp ginger root grated
  • 2 tbsp tempura flakes (tenkasu) tenkasu
  • 2 tbsp green onion finely chopped

Instructions 

  • Take a small pan and add 100 ml dashi stock, 20 ml soy sauce and 20 ml mirin. Boil for 1 minute to burn off the alcohol in the mirin and add 1 tsp sugar. Mix until the sugar has dissolved.
    Heating homemade mentsuyu sauce in a sauce pan
  • Take the pan off the heat, pour the dipping sauce into a heatproof jug and leave to cool. Once cool to the touch, you can transfer it to the refrigerator. Tip: Mixing will help it cool faster.
    cooling homemade mentsuyu sauce in a heatproof measuring jug
  • Cook 2 portions udon noodles according the the instructions on the packaging. Once cooked, pour the udon into a strainer to drain and rinse with cold running water. Drain once more and place the sieve over a bowl, add a few ice cubes to make the udon extra cold.
    chilling cooked udon noodles with ice in a mesh sieve over a bowl of cold water
  • Take two small plates and to each one, add 1/2 tsp wasabi, 1/2 tsp grated ginger, 1 tbsp tempura flakes and 1 tbsp chopped green onion (all extras are optional).
    chopped green onion, grated ginger and wasabi paste in a speckled bowl
  • Place each serving of udon on a "zaru" and sprinkle with kizami nori. (You can use a bamboo sushi mat on a plate if you don't have a zaru.)
    cold udon noodles on a bamboo zaru topped with shreds of nori (kizami nori)
  • Serve each portion of udon with a cup of cold mentsuyu dipping sauce and the small plate of ingredients to flavor the sauce.

Notes

You can use this recipe to make zaru soba, just replace the udon noodles with soba noodles.
If you're doubling or tripling the recipe, keep in mind that the mentsuyu will take longer to cool.
You can keep left over mentsuyu in the fridge for about 2 weeks (or the freezer for up to 1 month) so I recommend making extra if you plan to make zaru udon or zaru soba often during the summer! (The noodles are best cooked fresh.)