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Stir-Fried Udon Noodles

Thick, springy udon noodles are tossed with tender shrimp, crisp vegetables, and a savory-sweet sauce enriched with oyster sauce, mirin, dark soy sauce, and optional chili flakes. Finished with Japanese-inspired garnishes, this quick stir-fry makes a satisfying main course.
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Course: Main Course
Cuisine: Japanese
Keyword: Stir-Fried Udon Noodles
Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes

Ingredients

For the sauce

  • 2 tablespoons oyster sauce
  • ½ teaspoon Korean gochugaru or red pepper flakes optional
  • 1 tablespoon packed brown sugar
  • 1 tablespoon mirin Japanese sweet rice wine
  • 1 tablespoon dark soy sauce

For the noodle stir-fry

  • 2 frozen udon portions approximately 500 grams in total
  • 3 mushrooms thinly sliced
  • 2 tablespoons neutral cooking oil such as canola or vegetable oil, divided
  • ¼ cup carrot cut into fine matchsticks
  • 2 scallions chopped
  • ½ pound shrimp peeled and deveined
  • 1 cup finely shredded cabbage
  • ½ medium onion sliced
  • 2 fresh garlic cloves finely minced
  • Salt and ground black pepper as needed for seasoning

Optional garnishes

  • Toasted sesame seeds
  • Thinly sliced green onions
  • Kewpie mayonnaise
  • Bonito flakes

Instructions

  • In a small bowl, stir together the oyster sauce, dark soy sauce, mirin, brown sugar, and gochugaru or red pepper flakes, if included. Continue mixing until the sugar is incorporated. Lightly season the shrimp with salt and black pepper, then set it aside.
  • Place the frozen udon portions in a heat-resistant bowl and cover them with hot water. Allow the noodles to stand for approximately 1 minute, then carefully separate the strands with chopsticks. Rinse them under cold running water, drain thoroughly, and reserve.
  • Warm 1 tablespoon of the cooking oil in a wok or large frying pan over medium heat. Add the seasoned shrimp and stir-fry for about 2 minutes, or until fully cooked and opaque. Transfer the shrimp to a plate and set aside.
  • Pour the remaining tablespoon of oil into the same wok. Add the sliced onion and minced garlic, then cook for approximately 1 minute, stirring frequently, until aromatic.
  • Add the cabbage, carrot, and mushrooms. Continue stir-frying for 2 to 3 minutes, or until the vegetables begin to soften while retaining some texture.
  • Return the cooked shrimp to the wok. Add the drained udon noodles and pour in the prepared sauce.
  • Toss the ingredients continuously over medium heat until the noodles are evenly covered with sauce and heated throughout. Add the chopped scallions and stir briefly to distribute them.
  • Divide the stir-fried udon between serving plates. Garnish as desired with Kewpie mayonnaise, bonito flakes, toasted sesame seeds, and additional sliced green onions. Serve immediately.
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Notes

Chicken, beef, pork, tofu, bacon, or additional vegetables may be used in place of the shrimp while following the same general cooking sequence. Cooking time should be adjusted as necessary to ensure the selected protein is fully cooked.
A small additional splash of soy sauce may be stirred into the noodles during the final tossing stage for a deeper savory flavor.