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Udon soup with fish cakes in a bowl topped with green onions and tempura shrimp on the side.
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5 from 2 votes

Easy Udon Soup

This easy udon soup recipe takes 20 minutes (or quicker!) to make and is the definition of 'comfort in a bowl'! The thick and chewy udon noodles are cooked in an umami and sweet broth with fish cakes and topped with green onions.
Prep Time5 minutes
Cook Time10 minutes
Total Time15 minutes
Course: Main Course
Cuisine: Japanese
Servings: 1 person
Calories: 500kcal
Author: Dana

Ingredients

  • 1 kombu (Japanese seaweed)
  • few pieces of fish cakes
  • ½ tablespoon soy sauce
  • ½ teaspoon instant dashi powder
  • cups water
  • 1 pack udon

toppings

  • tempura shrimp
  • sliced green onions

Instructions

  • Add 2.5 cups of water to a pot. Add a piece of kombu in the water. Place pot on medium heat. When the water starts boiling, take out kombu.
    1 kombu, 2½ cups water
  • Slice your fish cakes and add them in the boiling water. Add your udon noodles and cook according to package directions (takes 5 minutes for me!).
    few pieces of fish cakes, 1 pack udon
  • When the noodles are done cooking, add ½ tablespoon soy sauce and ½ teaspoon dashi powder. Stir and serve the noodles in a bowl.
    ½ tablespoon soy sauce, ½ teaspoon instant dashi powder
  • Add toppings of choice. I like to heat up frozen tempura shrimp in the air fryer and add sliced green onions to the top. Hope you enjoy this easy udon soup!
    tempura shrimp, sliced green onions

Notes

  • Flavor of the soup. This broth will vary slightly depending on the type of fish cakes you use and how long you soaked or cooked your kombu.
  • Don't throw away the kombu! Cut it up in smaller pieces and use it in miso soup for another easy and delicious meal.
  • Don't boil the kombu for more than five minutes. It will add a bitterness to the broth.
  • Enjoy your soup freshly made. This soup is best enjoyed right away rather than stored to eat later. If you do make extra keep the noodles and broth stored separately until you're ready to heat.

Nutrition

Calories: 500kcal | Carbohydrates: 1g | Protein: 1g | Fat: 0.1g | Saturated Fat: 0.01g | Polyunsaturated Fat: 0.01g | Sodium: 558mg | Potassium: 23mg | Fiber: 0.2g | Sugar: 0.3g | Vitamin A: 3IU | Vitamin C: 0.1mg | Calcium: 24mg | Iron: 0.3mg