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Cold Soba with Dipping Sauce (Tsuyu)

A neat mound of Cold Soba with Dipping Sauce, topped with shredded nori, served alongside a small cup of dark dipping sauce.

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Prepare refreshing cold soba noodles served with a traditional Japanese dipping sauce. This recipe provides clear steps for cooking the noodles and mixing the flavorful tsuyu.

Ingredients

Scale
  • 8 ounces dried soba noodles
  • 4 cups water (for boiling)
  • Cold water or ice bath (for chilling)
  • For the Tsuyu Dipping Sauce:
  • 1 cup mentsuyu concentrate (or 1/2 cup soy sauce, 1/2 cup mirin, 1/4 cup sugar, 1/4 cup dashi stock)
  • 1/2 cup water (if using concentrate, adjust based on label instructions)
  • Optional Garnishes:
  • 2 scallions, thinly sliced
  • 1/4 cup grated daikon radish
  • 1 sheet nori seaweed, cut into thin strips
  • Wasabi paste, to taste

Instructions

  1. Cook the soba noodles according to package directions, usually 4 to 6 minutes, until al dente. Do not overcook.
  2. Immediately drain the hot noodles into a colander.
  3. Rinse the noodles thoroughly under cold running water, using your hands to gently agitate them to remove excess starch. This stops the cooking process and firms the texture.
  4. Prepare an ice bath if desired; briefly immerse the rinsed noodles for 30 seconds to make them very cold and chewy, then drain well.
  5. Prepare the dipping sauce: If using mentsuyu concentrate, mix it with the specified amount of water. If making from scratch, combine soy sauce, mirin, sugar, and dashi stock in a small saucepan. Heat gently until the sugar dissolves, then cool completely.
  6. Divide the chilled soba noodles among serving bowls.
  7. Serve the cold soba immediately with the chilled tsuyu dipping sauce in small individual bowls.
  8. Offer garnishes like sliced scallions, grated daikon, nori strips, and wasabi on the side for you to add as desired.

Notes

  • For the best texture, rinse the noodles immediately after draining. Do not let them sit warm.
  • If you prefer a stronger sauce flavor, reduce the added water when mixing the mentsuyu concentrate.
  • For a lighter sauce, increase the amount of dashi stock relative to the soy sauce.
  • You can prepare the tsuyu sauce up to three days ahead and keep it refrigerated.

Nutrition