Spicy Mandarin Orange Soba Noodles ~ these healthy Japanese buckwheat noodles in a spicy Mandarin orange sauce are low in calories, full of protein, and packed with flavor!

I’m completely obsessed with cold noodle dishes this summer, they just feel right to me.  Lots of Pad Thai, and now soba noodles.  The Japanese are the ultimate masters at clean, healthy eating.   I can’t think of another kind of food that makes me feel as instantly energized and balanced.  This recipe is a perfect example — it has a nice minimal quality, focusing on the play between the soba, or buckwheat, noodles, and a spicy Mandarin orange sauce.  It’s light and bright, naturally vegan, low calorie, and, most importantly, satisfying.


Soba is the Japanese word for buckwheat, and I have fallen in love with it.  It sounds like it would be a grain, and it’s cultivated like a grain, but it’s actually more of an herb, with grain-like seeds that get ground into flour.  It has a distinctive grey brown speckled color and an earthy taste.  It’s really good for you, too.  It contains all 8 amino acids, making it a complete protein, it’s also low in calories and very filling.  It’s pretty much a super food.

Spicy Mandarin Soba Noodles

Spicy Mandarin Soba Noodles


  • 6 oz soba noodles
  • 2/3 cup fresh mandarin orange juice (you can use tangerines or regular oranges)
  • 1/4 cup soy sauce
  • 1/4 cup brown sugar
  • 1 Tbsp rice wine vinegar
  • 2 Tbsp sesame oil
  • 1 - 1 1/2 tsp hot chili paste (use more or less to taste)
  • 1 inch piece of ginger, grated
  • 4 scallions, thinly sliced
  • sesame seeds for garnish
  • orange peel for garnish


  1. Cook the noodles in a pot of boiling water for 5 minutes or until just tender. Don't over cook them. Rise them in plenty of cold water to cool them down, then drain well and set aside.
  2. Put the orange juice in a small saucepan and bring to a boil. Boil gently for about 15 minutes or until it is thickened and almost syrupy.
  3. Take off the heat and whisk in the soy sauce, brown sugar, rice vinegar, sesame oil, ginger and hot chili sauce. Blend well and taste the sauce to adjust the seasonings. You should have about 2/3 cup sauce.
  4. Toss with the noodles and scallions.
  5. Serve cold or at room temperature with a sprinkle of sesame seeds and a twist of orange zest.


This recipe is slightly adapted from Delish.com



  • Look for soba noodles in the Thai or Asian section of your supermarket.   Mandarin oranges are a Japanese variety, a little bit like a large tangerine.  You can substitute tangerines or regular oranges for this dish, but it does pay to squeeze your own fresh juice.  You will need about 2 oranges.


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15 Responses to Spicy Mandarin Orange Soba Noodles

  1. Andrew says:

    I made soba noodles from scratch using regular buckwheat flower. They came out chunkier than store bought but tasted delicous!

  2. Laura says:

    LOVE the mandarin in these! So different and so refreshing! Pinning now.

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  4. Amanda says:

    Hi Sue,

    Just letting you know that the linked soba product you posted is actually predominantly made of wheat flour (you can zoom in on the packaging), as with most soba noodles — i.e, packed with gluten. Even the traditional Japanese ones are made with wheat. I have managed to find some pure buckwheat noodles, but they melt away when cooked and become insubstantial and hard to eat.

    • Sue says:

      Great comment, Amanda, I’ll update the post. I knew there was some wheat flour in many of the noodles, but didn’t know that pure buckwheat noodles were that hard to find, or that they disintegrate when cooked.

  5. Chris says:

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  6. Dom says:

    so delicious and fragrant and yes, you’re so spot on with the cold noodles, it just feels so summery and less gloopy… if that makes sense!

  7. Loving the sound of this spicy sauce – hot or cold would be perfect.

  8. Beautiful and just perfect for a summer evening on the deck. I want to come live with you and be your taste tester, please?

  9. Yum yum yum! THe noodles are perfect and i love the orange flavor with them. So fresh and the pair of sweet and spicy is one of my favorite

  10. I love soba noodles, wonderful flavors in this dish!

  11. hungry dog says:

    Although the weather is cold and wintery where I live, I still want to eat this. I might give it a try this weekend. l love soba. Thanks!

  12. Yum Sue – I’ve had soba noodles on my to do list for so long – thanks for another great recipe to try! Can I just do a blog about everything you blogged? It could be called “my view of your great island of recipes!” Lame I know – but I love your posts!

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