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There is something so comforting about a bowl of Asian noodles smothered in this udon stir fry sauce. In less time than it takes to order delivery, you can whip up a delicious stir-fried udon noodle dish with this simple recipe. The warm and comforting flavors of sesame oil and dark soy sauce will make this one of your go-to recipes.

close up of stir fried udon and sauce.

Udon sauce, often called yaki udon sauce, can be used to make a delicious and customizable stir-fried noodle dish. The sauce comes together quickly using ingredients you will likely find at your favorite grocery store. You can also order them online.

There are many kinds of Asian noodles – rice noodles, lo mein noodles, ramen, and others. Truly, any would taste great smothered in this sauce. Udon sauce is, not surprisingly, usually served with udon noodles. These are thick, chewy noodles made with wheat flour, water, and salt.

The sauce is the star here – it turns regular ingredients into something spectacular. Add chicken, pork, shrimp, or tofu to the cooked udon noodles. Typical vegetables used are shiitake mushrooms, bok choy, and green onions.

I’d love to tell you that leftovers are even better the next day, but we never seem to end up with any, so I don’t know!

If you are a fan of Asian flavored sauces, be sure to try my yummy Sukiyaki sauce.

what is udon sauce?

Udon sauce is a slightly sweet and richly flavored Asian sauce made from sesame oil, dark soy sauce, mirin, sugar, oyster sauce, rice wine vinegar, and sugar. It is tossed with fresh or frozen cooked udon noodles and makes a delicious stir fry dinner.

What goes with udon noodles?

Udon Noodles are thick chewy noodles that take on the flavor of the sauce they are tossed in. They are often served with ground pork or chicken, but shrimp or tofu work too. For a traditional stir fry, mix in sliced shiitake mushrooms, bok choy, and green onions. Don’t be shy – add in any veggies you have on hand.

Udon sauce in glass jar with a spoon.

Ingredients

While most of these ingredients are available in the international aisle of standard grocery stores, an Asian market will be sure to have them. You can also purchase them online if you don’t live near an Asian market.

Ingredients for undon sauce in glass bowls.
  • Mushroom Flavored Dark Soy Sauce: This is the foundation of the sauce. Dark mushroomy soy sauce is thick and richly flavored. It’s available in Asian markets or online.
  • Oyster Sauce: Rich, syrupy, slightly sweet and salty.
  • Brown Sugar: For sweetness.
  • Mirin: Mirin is a Japanese cooking wine that adds sweet balance to the soy sauce.
  • Sesame Oil: A flavor bomb. Adds so much deliciousness to the sauce.
  • Rice Wine Vinegar: Tangy and zingy balance.

How to Make Udon Noodle Sauce

This is another quick and easy sauce that tastes like it takes a lot longer to pull together than it actually does!

Udon sauce in a pot.
  1. Combine all ingredients. Add all ingredients together in a small sauce pan. Bring to a boil over medium-high heat, stirring to dissolve the sugar.
  2. Enjoy! And that is it! Remove from heat, and use immediately over cooked udon and veggies. Or cool slightly before serving.

Substitutions

  • Mirin: You can substitute sake, dry sherry or dry marsala for Mirin.
  • Oyster Sauce: Hoisin Sauce has a slightly different flavor but can be a substitute for the Oyster Sauce.
  • Mushroom Flavored Dark Soy Sauce: Dark soy sauce is concentrated and more flavorful than regular soy sauce. It is ok to use if you don’t have the mushroom flavored version. In a pinch, you can also use regular soy sauce, gluten free tamari or coconut amino acids.

Tips

This sauce is delicious with udon noodles. Depending on where you live, you may find some types of udon noodles easier to find than others. Here is the breakdown of the types available. My favorite is fresh udon noodles, but those are probably the most difficult to find.

  • Fresh udon noodles. These will be available at your local Asian market. They are usually in the refrigerated section. They’ll be uncooked and will need to be cooked in boiling water.
  • Frozen udon noodles: These are usually precooked. Boil them for a minute or two to defrost them up. They’re most often sold in in the freezer section at Asian markets.
  • Pre-cooked packaged udon noodles: These are the most common at bigger grocery stores. They’re pre-cooked and sold in the refrigerator section, in a vacuum sealed package.
  • Dry udon noodles. These are sold in the international aisle of your grocery store. They’re dry noodles, in a box or bag. You’ll need to cook these in boiling water, like pasta, before using in your stir fry.

Variations

You can always add a little heat to this dish using crushed red pepper or a bit of Gochujang sauce.

Stir fried udon noodles in a bowl.

Storage

This udon sauce can be stored in the refrigerator for up to 5 days, or in the freezer for up to 2 months.

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Yield: 4 servings

Udon Sauce

Close up of stir fried udon and sauce.

This udon sauce makes the most delicious yaki udon around. It's simple with only a handful of ingredients and a few minutes of your time.

Prep Time 10 minutes
Cook Time 5 minutes
Total Time 15 minutes

Ingredients

  • ⅓ cup mushroom flavored dark soy sauce
  • ¼ cup oyster sauce
  • ¼ cup brown sugar
  • 2 tablespoons mirin
  • 2 teaspoons sesame oil
  • 1 teaspoon rice wine vinegar

Instructions

  1. Combine soy sauce, oyster sauce, brown sugar, mirin, sesame oil, and rice wine vinegar in a small saucepan. Bring to a boil over medium heat, stirring to make sure sugar is dissolved.
  2. Remove from heat and use immediately over prepared udon and vegetables. Or set aside to cool slightly before storing.

Notes

Mushroom flavored soy sauce: You can use regular dark soy sauce.

The sauce yields enough to coat 500 grams of udon noodles with 3 cups of chopped vegetables.

Make ahead tips:

This sauce can be refrigerated for up to 5 days stored in an airtight container.

It can also be frozen for up to 2 months. Cool the sauce completely then transfer to a freezer-safe container. When ready to use, thaw in the refrigerator overnight and use immediately. Warm the sauce over medium-low heat before using.

Nutrition Information:

Yield:

4

Serving Size:

1

Amount Per Serving: Calories: 96Total Fat: 2gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 0mgSodium: 715mgCarbohydrates: 17gFiber: 0gSugar: 15gProtein: 1g

The nutrition information provided is for convenience and as a courtesy only. It is not guaranteed to be accurate because nutrition information can vary for a variety of reasons. For precise nutritional data use your preferred nutrition calculator and input the exact ingredients you used in the recipe.

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