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Sesame Soba Noodle Soup with Tofu and Bok Choy Recipe

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4 from 1 review

This Sesame Soba Noodle Soup features earthy, tender soba noodles simmered with firm tofu and baby bok choy in a rich, umami-packed sesame broth. Perfect as a quick and flavorful weeknight dinner, this comforting dish balances the nutty aroma of sesame oil with the savory depth of instant dashi and soy sauce, topped off with fresh scallions for a bright finish.

Ingredients

Tofu and Noodles

  • 14 ounces firm tofu
  • 8 ounces soba noodles

Broth

  • 8 cups water
  • 4 teaspoons instant dashi
  • 2 tablespoons soy sauce
  • 2 teaspoons mirin
  • 1 teaspoon sesame oil

Vegetables and Garnish

  • 2 baby bok choy, rinsed and leaves separated
  • 2 scallions, sliced, for topping

Instructions

  1. Press the Tofu: Drain the tofu and place it between several layers of paper towels or a thick kitchen towel on a rimmed plate. Place a heavy object like a skillet on top to press out excess moisture for 30 minutes.
  2. Cook the Soba Noodles: While the tofu is pressing, bring a pot of water to a boil. Add the soba noodles and cook for 2 ½ to 3 minutes until just barely al dente. Drain and rinse with warm water to remove excess starch. Divide noodles into serving bowls.
  3. Prepare the Broth: In a pot, combine 8 cups water with instant dashi and bring to a gentle simmer. Season the broth with soy sauce, mirin, and sesame oil to create an umami-rich base.
  4. Add Tofu and Bok Choy: Dice the pressed tofu into 1-inch cubes and add it along with the separated bok choy leaves to the simmering broth. Cook until the bok choy turns bright green and softens, about 5 minutes.
  5. Assemble and Serve: Ladle the hot broth, tofu, and bok choy evenly over the soba noodles in the bowls. Garnish each serving with sliced scallions and serve immediately.

Notes

  • Pressing the tofu is key to achieving a firm texture that soaks up the broth well.
  • Rinsing the soba noodles removes starch and prevents them from becoming gummy.
  • You can substitute instant dashi with vegetable broth for a vegetarian or vegan version.
  • Adjust soy sauce to taste for saltiness.
  • The recipe serves 4 and can be doubled for larger groups.