Nothing beats a light and refreshing meal that’s ready in minutes. These Cold Soba Noodles are the perfect solution on a hot summer day!
Cold Soba Noodles are one of my family’s favorites, especially when we need to cool down. This dish is made with just five ingredients and requires minimal cooking, yet the noodles and dipping sauce perfectly complement each other. It’s a healthy, simple meal that’s also a staple in both Japanese and Korean cuisine.
The secret to Zaru Soba’s incredible flavor is tsuyu, a bottled sauce that makes preparation a breeze and guarantees a rich, umami-filled taste. Then, the magic happens in the contrast: the nutty, chewy texture of the chilled soba noodles is elevated by the savory, ice-cold sauce. While the noodles are a star on their own, the customizable garnishes let you get creative, making this easy dish even more delicious!
Ingredients
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Soba Noodles
This is made from buckwheat flour and wheat flour. It’s usually brown in color and grainy when uncooked, but it becomes soft and chewy once cooked. It has a slight savory taste, which makes a light soy-based, dashi sauce or soup complement it well. Bonus: this is a low-calorie and nutrient-dense noodle, so it’s a great family-friendly dish! You can find these in Japanese and Korean groceries.
Sauce Ingredients
- Tsuyu Soup Base – This is a concentrated soup base made from soy sauce, mirin, sake, and bonito flakes. There are many homemade recipes available online, as it is super easy to make, but bottled versions are also available in Japanese grocery stores. The bottled versions are perfectly formulated into concentrates and only require a ratio of water to dilute, depending on what you will cook. This can be a base for many dishes like noodle soups, rice bowl sauce, or even tempura sauce!
- Water – The ratio for cold soba sauce is 1:3, so 1/2 cup of tsuyu needs 1 1/2 cups of water. Depending on the brand you will get, instructions are usually available on the bottle.
- Fish Sauce or Hondashi – Since tsuyu is on the salty side, a bit of fish sauce or hondashi will bump up the savor and umami.
- Sugar – This is optional; use this for a bit of balance from the salt and umami.
Garnish
- Seaweed Strips and Sesame Seeds – Garnish for the noodles and additional flavor.
- Grated Radish or Ginger – These are finely grated for freshness. When you grate, they usually yield juice, so it needs to be squeezed out to keep the sauce from getting diluted. Use either of the two because it will make a difference in the sauce, but ginger tends to taste stronger than the radish.
- Scallions – For sauce garnish and additional freshness.
- Wasabi or Togarashi – This is optional, for extra heat.
How to Make Cold Soba Noodles
Prepare the Noodles
Boil the noodles according to package instructions; boiling time will depend on the brand you use. While cooking, air out the noodles to keep them from sticking together.
Afterwards, drain and rinse off excess starch with cold water. This will stop the cooking process, making the noodles stay firm and chewy. Do not overcook them!
Set aside on a strainer to drain, but add ice cubes if available to keep it cool and moist.
Make the Sauce
Combine tsuyu, water, fish sauce or hondashi, and sugar. Mix well.
Grate the radish, squeeze out excess water, then form into balls.
Portion the sauce and add the radish according to preference, then garnish with chopped scallions and wasabi.
Plate the Soba Noodles
Portion the noodles, then garnish with seaweed strips and sesame seeds. Serve with the sauce separately.
Enjoy!
To enjoy, customize the sauce to your liking by adding more garnish or heat. Dip the noodles and enjoy!
Recipe Notes:
- In restaurants, cold soba noodles are usually served on top of a bamboo wrapper to help further drain excess water from the noodles. Use a bamboo wrapper if available, but it is optional.
- You can prepare the sauce ahead of time and keep it in the fridge for 2-3 days. Prepare noodles and garnish upon consumption.
- Commonly, cold soba noodles are served with tempura or any grilled meat.
Other noodle dishes you might like:
- Shirataki Noodle Salad
- Udon Noodle Soup
- Jjampong (Spicy Seafood Noodle Soup)
- Kongguksu (Cold Soybean Noodle Soup)
- Oi Naengguk (Cold Cucumber-Seaweed Soup)
Make sure to leave a rating, a comment, or tag me on Facebook, Instagram, or Tiktok when you chop them up! Yeobosayo!
Zaru Soba (Cold Soba Noodles with Dipping Sauce)
Equipment
- Strainer
- Bowls
- Grater
Ingredients
- 3-4 servings Soba Noodles
Sauce Ingredients
- 1/2 cup Tsuyu Soup Base
- 1 1/2 cup Water
- 1 tbsp Fish Sauce or Hondashi
- 1/2 tbsp Sugar Optional
Garnish
- Radish or Ginger Grated or blended
- Scallions Chopped
- Seaweed Strips
- Wasabi or Togarashi
- Sesame Seeds
Instructions
- Boil water, cook buckwheat noodles for 4-5 minutes or according to package instructions. While cooking, air out the noodles to keep them from sticking.
- Drain and rinse with cold water. Leave it on a strainer to drain, but add ice cubes to keep it cold.
- In a bowl, combine tsuyu, water, fish sauce, and sugar.
- Grate or blend radish, squeeze out excess water, then form into balls.
- Plate the noodles by portioning them, then garnish with seaweeds and sesame seeds.
- Assemble the sauce by portioning the tsuyu sauce, then garnish with grated radish, scallions, and sesame seeds.
- Serve noodles and sauce separately.
- To eat, customize the sauce to your liking, dip each bite of noodles, and enjoy!
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